List of allied military operations of the Vietnam War (1966) explained

This article is a list of known military operations of the Vietnam War in 1966, conducted by the armed forces of the Republic of Vietnam, the United States and their allies.

Date Duration	Operation Name	Unit(s) – Description	Location		Allied KIAs
1966	Operation Lightning Bug^[1]	USAF air interdiction operations
Jan 1 – 8	Operation Marauder/Operation An Dan 564^[2] ^[3] ^[4]	1st Infantry Division, 173rd Airborne Brigade, 1st Battalion, Royal Australian Regiment and ARVN operation in Plain of Reeds area of the Mekong Delta		268	15 US, 31 ARVN
Jan 1 – 18		A combined ROK 2nd Marine Brigade and paratroops of ARVN 47th Regiment search and destroy operation
Jan 1 – 20		1/1 Cavalry search and destroy operation along the Cambodian border	Kon Tum and Pleiku Provinces
Jan 3 – 4		2nd Battalion, 9th Marines and 3rd Tank Battalion search and destroy operation
Jan 3 – 8		2nd Battalion, 327th Infantry Regiment search and destroy operation
Jan 3 – 8		1st Battalion, 1st Marines search and destroy operation
Jan 3 – 8		1st Brigade, 1st Infantry Division search and destroy operation
Jan 8 – 14				129	22
Jan 9 – 11		ARVN and ROK Capital Division search and destroy operation		192	11
Jan 11 – 14		1st Brigade, 1st Infantry Division search and destroy operation
Jan 11 – 17	Operation Mallard^[5]	1st Battalion, 3rd Marines and 3rd Battalion, 7th Marines search and destroy operation
Jan 12 – 25		2/1 Cavalry search and destroy operation
Jan 12 – 31				93
Jan 13 – 17		2/1 Cavalry search and destroy operation	Bình Định, Kon Tum and Pleiku Provinces
Jan 13 – 17		2nd Battalion, 327th Airborne Infantry Regiment search and destroy operation
Jan 15 – 17		2nd Battalion, 9th Marines search and destroy operation
Jan 15 – 19		1st Brigade, 1st Infantry Division resupply operation
Jan 17 – 18		2nd Battalion, 16th Infantry Regiment search and destroy operation
Jan 18 – 20		173rd Airborne Brigade search and destroy operation	Binh Hoa and Bình Dương Provinces
Jan 19 – Feb 21	Operation Van Buren^[6]	101st Airborne Division, ROK 2nd Marine Brigade and ARVN 47th Regiment rice security operation		679	54 US, 45 ROK
Jan 20 – 24
Jan 24 – 26		2nd Brigade, 1st Infantry Division search and destroy operation
Jan 24 – 26	Operation Quick Kick III^[7]	1st Brigade, 1st Infantry Division search and destroy operation
Jan 24 – 30		173rd Airborne Brigade search and destroy operation	Binh Hoa and Bình Dương Provinces
Jan 24 – Mar 6	Operation Masher/White Wing/Thang Phong II^[8]	1st Cavalry Division, ARVN 22nd Division Airborne Brigade and 1st Regiment ROK Capital Division operation USMC Operation Double Eagle links in cross border segment		2389	288 US, 10 ROK, 119 ARVN
Jan 28 – Feb 1		1st Brigade, 1st Infantry Division resupply operation
Jan 28 – Feb 15
Jan 28 – Feb 17			Quảng Ngãi and Quảng Trị Provinces	312	24
Jan 29 – 31
Jan 30 – 31		US search and destroy operation
Jan 30 – Feb 3		2nd Brigade, 25th Infantry Division search and destroy operation
Feb		1st Brigade, 101st Airborne Division, ROK 2nd Marine Brigade and ARVN 47th Regiment search and destroy operation
Feb 3 – 9		1st Brigade, 1st Infantry Division search and destroy operation
Feb 3 – 15		2nd Brigade, 25th Infantry Division search and destroy operation
Feb 4- 9		173rd Airborne Brigade and 1st Battalion, Royal Australian Regiment search and destroy operation	Biên Hòa and Bình Dương Provinces
Feb 5 – 8		3rd Brigade, 25th Infantry Division search and destroy and road clearing operation	Kon Tum and Pleiku Provinces
Feb 6 – Mar 6		ARVN operation		183	17
Feb 7 – 11
Feb 7 – 16		3rd Reconnaissance Battalion reconnaissance in force operation
Feb 7 – May 1972	Operation Shed Light^[9]	USAF programme to develop night and adverse weather interdiction capabilities	South Vietnam & Laos
Feb 8 – 9		3rd Brigade, 1st Infantry Division search and destroy operation
Feb 9 – 21			Bình Định and Pleiku Provinces
Feb 11 – 28	Operation Eagle's Claw^[10]	1st Cavalry Division operation		340	172
Feb 11 – Mar 2		1st Infantry Brigade, 1st Battalion, Royal Australian Regiment and the New Zealand artillery combined search and destroy, road repair, and pacification operation		154	11 US
Feb 12 – 16		173rd Airborne Brigade search and destroy operation
Feb 12 – 16		1st Infantry Division search and destroy operation
Feb 13		ARVN operation		150	21
Feb 14 – 16
Feb 14 – 16		2nd Battalion, 27th Infantry Regiment search and destroy operation
Feb 15 – 21		ARVN operation		270	62
Feb 17 – 28		BLT 3rd Battalion, 1st Marines and 3rd Battalion, 12th Marines search and destroy operation to engage the 1st VC Regiment		125
Feb 18 – 19
Feb 21 – 27		2nd and 3rd Brigades, 1st Infantry Division search and destroy operation	Michelin Rubber Plantation and the Boi Loi woods, Bình Dương, Binh Long and Tây Ninh Provinces
Feb 22 – 24	Operation Clean Sweep I^[11]	2nd Brigade, 25th Infantry Division and ARVN 49th Regiment search and destroy operation	Cu Chi area	11	5 US
Feb 22 – Mar 2		2 Regiments of the ARVN 1st Division search and destroy operation		444	35
Feb 25 – Mar 24		3rd Brigade, 25th Infantry Division operation		124	17
Feb 26 – 28	Operation Kolchak I^[12]	2nd Brigade, 25th Infantry Division search and destroy operation		5
Feb 26 – Mar 1		173rd Airborne Brigade search and destroy operation			15
Feb 26 – Mar 24	Operation Harrison^[13]	1st Brigade, 101st Airborne Division search and clear operation		285	42
Feb 27 – Mar 3				122	15
Mar 1 – 2		3rd Brigade, 1st Infantry Division road security operation
Mar 1 – 5		2/1 Cavalry search and destroy operation
Mar 1 – 5		2nd Brigade, 1st Infantry Division search and destroy operation
Mar 3 – 6		1st Brigade, 1st Infantry Division route security for resupply convoys	Biên Hòa and Bình Dương Provinces
Mar 3 – 7		3rd Brigade, 1st Infantry Division search and destroy operation		199	15
Mar 4		2nd Brigade, 25th Infantry Division search and destroy operation
Mar 4 – 7		3rd Battalion, 1st Marines, 2nd Battalion, 4th Marines, 1st Battalion, 7th Marines, 2nd Battalion, 7th Marines and ARVN 2nd Division search and destroy operation against the PAVN 36th Regiment and VC Main Force units operation. First USMC contact with the NVA	11 km northwest of Quảng Ngãi City,	632	83 US, 32 ARVN
Mar 6 – 8		3rd Brigade, 1st Infantry Division search and destroy operation
Mar 7 – 24		1st Brigade, 1st Infantry Division, 173rd Airborne Brigade, 1st Battalion, Royal Australian Regiment and ARVN 10th Division search and destroy operation. Major enemy unit encountered is the VC 271st Main Force Regiment	along the Song Be River, Bình Dương Province/Long Khánh Province border area	336	107
Mar 7 – 28		2/1 Cavalry and 3/1 Cavalry search and destroy operation
Mar 9 – 10
Mar 12		3rd Brigade, 1st Infantry Division security operation		11	9
Mar 13 – 15		3rd Brigade, 1st Infantry Division security operation
Mar 13 – 17		1st Battalion, 18th Infantry Regiment search and destroy operation
Mar 14 – 19		2nd Brigade, 25th Infantry Division search and destroy operation
Mar 14 – 21
Mar 14 – 21
Mar 17 – 18		2nd Brigade, 1st Infantry Division operation
Mar 17 - 18
Mar 18 – 19		3rd Brigade, 1st Infantry Division security operation
Mar 20 – 23		2nd Battalion, 1st Marines and 1st Battalion, 4th Marines search and destroy operation
Mar 20 – 24		ARVN operation		219	3
Mar 20 – 25		3rd Battalion, 1st Marines, 3rd Battalion, 7th Marines, 2nd Battalion, 4th Marines, ARVN 5th Airborne Battalion and Republic of Vietnam Marine Corps combined reaction force operation landing near An Hoa to encounter the 60th and 90th battalions of the 1st VC Regiment and the 11th Battalion, 21st NVA Regiment		623	99
Mar 20 – 28		3rd Battalion, 3rd Marines, 2nd Battalion, 9th Marines and 3rd Tank Battalion search and destroy operation
Mar 21		ARVN Special Forces operation		134	10
Mar 21 – May 5		US security operation
Mar 23 – 25		3rd Brigade, 1st Infantry Division search and destroy operation
Mar 23 – 26
Mar 23 – 27		ROKA Capital Division search and destroy operation		349	17
Mar 23 – 27		2nd Brigade, 1st Infantry Division search and destroy operation
Mar 24 – 25		1st Brigade, 1st Infantry Division and ARVN 5th Division search and destroy operation
Mar 24 – 26		ARVN operation		245	17
Mar 24 – 29		3rd Brigade, 1st Infantry Division search and destroy operation
Mar 25 – Apr 8	Operation Lincoln^[14]			522	51
Mar 26 – Jul 21	Operation Fillmore^[15]	1st Brigade, 101st Airborne Division, ROK 2nd Marine Brigade and ARVN 47th Regiment operation		134^[16]	8 US
Mar 26 – Apr 6		SLF 1st Battalion, 5th Marines and 2 Battalions of Vietnamese Marines search and clear operation along the Long Tau shipping channel		63	6
Mar 26 – Sep 23		ROK Capital Division operation		299	23
Mar 27 – Apr 1		1st Battalion, 28th Infantry Regiment search and destroy operation
Mar 27 – May 5
Mar 28 – 30				169	11
Mar 29 – 30		USMC search and destroy operation
Mar 29 – Apr 5	Operation Circle Pines^[17]	1st Battalion, 5th Infantry Regiment and ARVN 7th Regiment operation		170	32
Mar 30 – Apr 15	Operation Abilene^[18]	1st Infantry Division and 1st Battalion, Royal Australian Regiment operation		92	48
Apr		ARVN 7th Division search and destroy operation		140	11
Apr	Operation Lam Son 255	ARVN 1st Division operation		33
Apr		1st Battalion, 2nd Marines, 2nd Battalion, 7th Marines, ARVN 2nd Division and VNMC search and destroy operation		68	3
Apr 1 – 7		1st Battalion, 28th Infantry Regiment search and destroy operation
Apr 1 – 11		1st Battalion, 3rd Marines search and destroy operation		57	18
Apr 2 – 13		ROK Capital Division operation		292	23
Apr 6 – 8	Operation Kahuku^[19]	1st Battalion, 5th Infantry Regiment and ARVN 49th Regiment search and destroy operation		26
Apr 8 – 10		3rd Battalion, 1st Marines and 2nd Battalion, 4th Marines search and destroy operation	Quảng Tín Province
Apr 9 – 25		173rd Airborne Brigade and 1st Battalion, Royal Australian Regiment search and destroy operation
Apr 11 – 14
Apr 11 – 17	Operation Mosby I (part of Operation Lincoln)	1/1 Cavalry 3/1 Cavalry and 5th Battalion, 14th Cavalry Regiment reconnaissance in force along Cambodian border	western Kon Tum and Pleiku Provinces
Apr 12 – May 18		1st Brigade, 101st Airborne Division operations	Bình Thuận, Bình Tuy, Lâm Đồng, Phước Long and Quang Doc Provinces
Apr 12 – 26		1st Brigade, 101st Airborne Division search and destroy operation
Apr 12 – 26		1st Brigade, 101st Airborne Division search and destroy operation
Apr 13 – 14
Apr 13 – 14	Operation Kalamazoo^[20]	1st Battalion, 5th Infantry Regiment operation		26	7
Apr 13 – May 1		3rd Brigade, 25th Infantry Division and ARVN 42nd Regiment search and destroy operation to search the area west of Route 14 north from Dak To toward Dak Pek in support of Army Engineers repairing and improving Route 14
Apr 14 – 16		ARVN 2nd Division operation		206	11
Apr 15 – 17
Apr 15 – 20		1st Brigade, 1st Infantry Division search and destroy operation
Apr 16 – 21	Operation Kahala^[21] ^[22]	2nd Brigade, 25th Infantry Division search and destroy operation		55	3
Apr 17 – 20		1st Battalion, 1st Marines and 2nd Battalion, 1st Marines search and destroy operation
Apr 17 – May 1		1st Battalion, 1st Marines search and destroy and reconnaissance in force operation
Apr 17 – May 4
Apr 17 – Jun 9		1st Battalion, 18th Infantry Regiment search and destroy operation
Apr 18 – 20		1st Infantry Division search and destroy operation
Apr 20 – 21		US operation
Apr 20 – 22
Apr 20 – May 10				103	8
Apr 21 – 25		ARVN 21st Division operation		247	20
Apr 21 – May 3			Kon Tum and Pleiku Provinces
Apr 22 – 23
Apr 22 – 23		1st Battalion, 26th Infantry Regiment search and destroy operation
Apr 22 – 24		3rd Battalion, 1st Marines, 2nd Battalion, 7th Marines, 3rd Battalion, 7th Marines and ARVN 5th Regiment, VNMC 1st Battalion and 5th Airborne Battalion operation		103	8
Apr 24 – May 17		1st Infantry Division and ARVN 5th Division multi-brigade search and destroy operations on the eastern flank of War Zone C to open Route 13 from Saigon to the north and engage the Viet Cong 9th Division		119	56 US
Apr 26 – 28		3/1 Cavalry show of force operation
Apr 26 – 30		3rd Battalion, 1st Marines and 2nd Battalion, 5th Marines search and destroy operation
Apr 27 – May 2		SLF 1st Battalion, 5th Marines rice harvest security operation
Apr 27 – May 12		2nd Brigade, 25th Infantry Division search and destroy operation
Apr 27 – May 12		1st Brigade, 1st Infantry Division road clearing operation
May		ARVN operation		30	19
May		ARVN operation		33	29
May 1–18		1st Brigade, 101st Airborne Division, 173rd Airborne Brigade and ARVN 45th Regiment operation		101	9
May 2 – 12
May 3 – 15		2/1 Cavalry reconnaissance in force operation
May 4–6		173rd Airborne Brigade search and destroy operation
May 4–7		1st Battalion, 1st Marines, 2nd Battalion, 4th Marines and 3rd Battalion, 4th Marines search and destroy operation
May 4–16	Operation Davy Crockett^[23]	3/1 Cavalry and ARVN 22nd Division search and destroy operation revisited the Operation Masher/White Wing area; the PAVN and VC offered resolute resistance, often entrenched or firing out of large, hardened clay anthills		345	156
May 7–9		1st Infantry Division four Battalion air assault on suspected VC headquarters
May 9 – 14		1st Battalion, 5th Marines, 1st Battalion, 7th Marines, 2nd Battalion, 7th Marines and VNMC 2nd & 5th Battalions security operation
May 10 – 12
May 10 – Jul 31		3rd Brigade 25th Infantry Division, 1 Battalion from the 2/1 Cavalry, Troop B, 1st Squadron, 9th Cavalry Regiment, 2 ROKA Battalions and 2 ARVN Battalions border screening, area-control operation which thwarts a VC monsoon season offensive	Darlac and Pleiku Provinces	546	63 US, 16 ARVN
Aug 25 – Oct 18		2nd Brigade, 4th Infantry Division, 2nd and 3rd Brigades 25th Infantry Division and 3/1 Cavalry operation		46	3
May 12–13		4th Battalion, 9th Infantry Division search and destroy operation
May 14–16	Operation Dan Chi 227^[24]	ARVN operation		247	1
May 15 – 17		3rd Battalion, 7th Marines search and destroy operation
May 16				103	25
May 16 – Jun 5	Operation Crazy Horse/Operation Bun Kae 66-7^[25]	1st Cavalry Division, ROK Capital Division and ARVN operation		501	29
May 17		ARVN operation		267	6
May 17 – 21
May 19–26		3rd Brigade, 1st Infantry Division search and destroy operation and reinforcement of Lộc Ninh Special Forces camp
May 20 – 22		3rd Battalion, 7th Marines and 2nd Battalion, ARVN 4th Regiment search and destroy operation
May 21 – 23		ARVN operation	Kiên Giang Province	224	6
May 23 – Jun 25		3rd Battalion 4th Marines search and operation
May 24		1st Battalion, 5th Marines search and destroy operation along the coast
May 24 – Jun 4		173rd Airborne Brigade and 1st Battalion, Royal Australian Regiment multi-battalion reconnaissance operation and the clearance of Nui Dat and the establishment of the 1st Australian Task Force base area		48
May 25 – 28		17th Marines, ARVN 5th Regiment and VNMC 5th Battalion search and destroy operation
May 27–28		US security operation
May 30		ARVN operation		100	2
May 30 – Jun 6		2nd Brigade, 1st Infantry Division search and destroy operation
May 30 – Jun 8		2nd Battalion, 4th Marines reconnaissance in force
May 30 – Jun 9
May 31		1st Battalion, 5th Marines search and destroy operation
May 31 – Jun 8		Search and destroy operation and cordon and search operation
Jun – Aug		6th Battalion, Royal Australian Regiment search and clearance of Long Phouc village
Jun 1 – 6		3rd Brigade, 1st Infantry Division search and destroy operation
Jun 1 – 9		USMC search and destroy operation
Jun 2 – 5	Operation Lam Son 11^[26]	1st Squadron, 4th Cavalry and 7th Company, 7th ARVN Regiment operation
Jun 2 – 21	Operation Hawthorne/Operation Dan Tang 61^[27]	1st and 2nd Battalions, 327th Airborne Infantry Regiment, 2nd Battalion 502nd Airborne Infantry Regiment, 1st Battalion, 5th Cavalry Regiment and ARVN 42nd Regiment and 21st Ranger Battalion operation		688 plus further 506 estimated	48 US, 10 ARVN
Jun 2 – Jul 13				855	47
Jun 3 – Jul 3
Jun 3 – 9		2nd Brigade, 25th Infantry Division and ARVN 49th Regiment search and destroy operation
Jun 6		2nd Battalion, 2nd Marines search and destroy operation
Jun 6 – 9		4th Battalion, 9th Infantry Regiment search and destroy operation
Jun 6 – 12		2nd Battalion, 5th Marines search and destroy operation
Jun 6 – 20		US security operation
Jun 7 – 9
Jun 7 – 12		ARVN and CIDG operation		135	20
Jun 8 – 18		173rd Airborne Brigade search and destroy operation
Jun 9 – 12		USMC search and destroy and operation
Jun 9 – 21		2/1 Cavalry reconnaissance and security operation along the Cambodian border	western Kon Tum and Pleiku Provinces
Jun 12 – 14		1st Brigade, 25th Infantry Division search and destroy operation
Jun 13		1st Battalion, 5th Infantry Regiment search and destroy operation
Jun 13 – Jul 4		1st Battalion, 27th Infantry Regiment search and destroy operation
Jun 16		ROK 2nd Marine Brigade engineering security operation	Bình Định and Phú Yên Provinces
Jun 17 – 21		4th Battalion, 9th Infantry Regiment search and destroy operation
Jun 17 – 23		2nd Battalion, 4th Marines search and destroy operation
Jun 18 – 30				400
Jun 19 – Jul 1		1st Cavalry Division and 1st Brigade, 101st Airborne Division operation		459	62
Jun 21 – 24	Operation Lam Son 283	ARVN operation		331	37
Jun 23 – Jul 9		173rd Airborne Brigade search and destroy operation
Jun 24 – Jul 15		1st Brigade, 101st Airborne Division security operation of the Cambodian and Laotian borders
Jun 25 – Jul 1	Operation Coco Palms^[28]	1st Battalion, 5th Infantry Regiment search and destroy operation		25
Jun 25 – Jul 2				54	6
Jun 27 – Dec 1 68	Operation Boone^[29]	MACV operation to develop a cross-border reconnaissance capability for Cambodia using Special Forces troops	Cambodia
Jun 29 – Jul 1		2nd Battalion, 7th Marines, 3rd Battalion, 11th Marines, 2nd Battalion, ARVN 5th Regiment ARVN 37th Ranger Battalion search and destroy operation
Jun 30 – Jul 31		2/1 Cavalry security operation
Jul 1 – 6		3rd Battalion, 4th Marines and ARVN search and destroy operation
Jul 2 – 30
Jul 2 – 31		25th Infantry Division search and destroy operation	Bình Tuy and Long Khánh Provinces
Jul 4		2/1 Cavalry counterintelligence operation
Jul 4 – 14		5th Battalion, Royal Australian Regiment search and destroy operation
Jul 4 – Oct 27		1st Battalion, 3rd Marines, 2nd Battalion, 3rd Marines, 3rd Battalion, 3rd Marines, 1st Battalion, 9th Marines, 2nd Battalion, 9th Marines and 3rd Battalion, 9th Marines search and destroy and security operation for the An Hoa industrial complex		507	24
Jul 5		ARVN operation		155	4
Jul 5 – 11		ARVN operation		137	15
Jul 6 – 14		1st Reconnaissance Battalion reconnaissance operation in the Do Xa region		13
Jul 6 – 26		1st Battalion, 2nd Infantry Regiment search and destroy operation
Jul 7 – Aug 3				882	183
Jul 8 – 12		ARVN operation		107	17
Jul 8 – 13		1st Battalion, 27th Infantry Regiment search and destroy operation
Jul 9 – 17		173rd Airborne Brigade search and destroy operation
Jul 9 – Aug		ROK Capital Division operation		106	7
Jul 12 – Sep 3		1st Brigade, 1st Infantry Division search and destroy operation	Binh Long and Phước Long Provinces
Jul 13 – 15		2nd Battalion, 27th Infantry Regiment search and destroy operation
Jul 13 – 22		III MAF operation which involved inserting a series of 13-man reconnaissance teams to observe and bring fire on the NVA and VC	Que Son Valley, Quang Tin and Quảng Nam Provinces	85	9
Jul 14 – 22		2nd Brigade, 25th Infantry Division search and destroy operation
Jul 15 – 23		5th Battalion, Royal Australian Regiment search and destroy operation
Jul 16
Jul 16 – 18		6th Battalion, Royal Australian Regiment operation
Jul 17	Operation Lam Son 290	ARVN operation		135
Jul 17 – 22		1st Battalion, 2nd Infantry Regiment and 1st Battalion, 26th Infantry Regiment search and destroy operation
Jul 17 – Aug 1		3/1 Cavalry reconnaissance and screening mission along the Cambodian border west of Dak To and Dak Pek including surveillance of known and suspected infiltration routes
Jul 17 – Aug 3		173rd Airborne Brigade search and destroy operation
Jul 21 – Sep 4		2nd Brigade, 4th Infantry Division, 1st Brigade, 101st Airborne Division and ROK 2nd Marine Brigade operation		158	12
Jul 20		Air and naval gunfire interdiction of lines of communication	southern panhandle of North Vietnam
Jul 22 – 24		1st and 2nd Battalions, 2nd Infantry Regiment search and destroy operation
Jul 23 – Aug 6	Operation Koko Head^[30]	2nd Brigade, 25th Infantry Division search and destroy operation	Bình Dương and Hậu Nghĩa Provinces	6
Jul 24 – 29		6th Battalion, Royal Australian Regiment search and destroy operation
Jul 25		6th Battalion, 16th Field Artillery harassment and interdiction operation
Jul 26 – 29		1st Battalion, 7th Marines, 2nd Battalion, 7th Marines and ARVN 2nd Division search and destroy operation
Jul 26 – Aug 1		1st Battalion, 2nd Infantry Regiment search and destroy operation
Jul 31 – Sep 2		1/1 Cavalry security operation
Aug – Sep	Operation Blue Jay^[31]	II Field Force operation to support the deployment of the 196th Infantry Brigade to its base in Tây Ninh; the 25th Infantry Division was the sponsor, along with direct air force airlift from the port of Vũng Tàu to Tây Ninh, along with road convoys
Jul 31 – Aug 25		3rd Brigade 25th Infantry Division, 2/1 Cavalry, 3/1 Cavalry, ROKA, ARVN 23rd Division and ARVN 3rd Airborne Brigade search and clear operation		620	68
Aug 1 – 31		1st Brigade, 25th Infantry Division search and destroy operation
Aug 2 – 8
Aug 2 – 14
Aug 3 – Jan 31 1967			DMZ	1397	200
Aug 4 – 30		26th Marines search and destroy operation
Aug 6 – 21		1st Battalion, 5th Marines, 2nd Battalion, 5th Marines and 3rd Battalion, 5th Marines, 1st, 3rd and 4th Battalions Republic of Vietnam Marine Corps and ARVN 35th and 39th Ranger Battalions search and destroy operation to locate and destroy the PAVN 2nd Division (AKA 620th Division)	Que Son Valley, Quảng Nam and Quảng Tín Provinces	674	22
Aug 7 – 18	Operation Holsworthy^[32]
Aug 7 – Sep 1		2nd Battalion, 27th Infantry Regiment pacification operation
Aug 8 – Sep 1		2nd Brigade, 25th Infantry Division search and destroy operation
Aug 10 – 12		1st Battalion, 9th Marines search and destroy operation
Aug 9 – Sep 7		173rd Airborne Brigade, 2nd Battalion, 18th Infantry Regiment, BLT 1st Battalion, 26th Marines, 1st Australian Task Force and ARVN 33rd and 35th Ranger Battalions multi-battalion search and destroy operation in the May Tao Secret Zone. The deserted headquarters area for the VC 5th Division was located and destroyed along with vast amounts of supplies	Long Khánh, Bình Tuy and Phước Tuy Provinces	11
Aug 10 – Oct 10
Aug 11 – Apr 1967	Operation Pink Rose^[33]	ARPA, US Forest Service and USAF operational testing of techniques to dry out and start forest fires	Tây Ninh and Phước Long Provinces
Aug 12 – 14		1st Brigade, 1st Infantry Division search and destroy operation
Aug 13 – 21		1st Battalion, 9th Marines and 3rd Battalion, 9th Marines search and destroy operation
Aug 15 – 17		1st Infantry Division search and destroy operation
Aug 15 – 19		US search and destroy operation
Aug 16 – 18		6th Battalion, Royal Australian Regiment operation in response to VC mortar fire developed into a battle against the VC 275th Regiment		245	18
Aug 16 – 29		SLF 1st Battalion, 26th Marines and the 173rd Airborne Brigade joint operation		2	4
Aug 18 – 20		US search and destroy operation
Aug 18 – 20		1st Battalion, 1st Marines, 2nd Battalion, 1st Marines and ARVN 51st Regiment search and destroy operation
Aug 18 – 20		ARVN search and clear operation		100	21
Aug 19 – 22		2nd Brigade, 1st Infantry Division search and destroy operation
Aug 20 – 22		3rd Battalion, 4th Marines search and destroy operation
Aug 20 – 29		3rd Marines search and destroy operation		113	7
Aug 23 – Sep 2		1st Brigade, 1st Infantry Division mine-clearing operation
Aug 23 – Sep 23		ROK 2nd Marine Brigade clear and search operation
Aug 23 – Sep 26
Aug 25 – 27		ARVN search and destroy operation	Kiên Giang Province	132	30
Aug 26 – 31
Aug 26 – Sep 6		3rd Battalion, 4th Marines search and destroy operation
Aug 26 – Jan 20 68		1st Cavalry Division economy-of-force operation
Aug 27 – 29		3rd Battalion, 5th Marines, 3rd Battalion, 7th Marines and ARVN 4th Regiment search and destroy operation
Aug 31 – Sep 12	Operation Kipapa^[34]	1st Brigade, 25th Infantry Division operation		8	6
Sep 1 – 4		2nd Battalion, 1st Marines search and destroy operation
Sep 1 – Oct 11		2nd Brigade, 25th Infantry Division search and destroy operation
Sep 1-Nov 1	Operation Duke^[35]	84th Engineer Battalion (Construction), 19th Engineer Battalion (Combat), 509th Engineer Company (Panel Bridge), 553rd Engineer Company (Floating Bridge), 554th Engineer Company (Floating Bridge), 513th Engineer Company (Dump Truck), 585th Engineer Company (Dump Truck), 630th Engineer Company (Light Equipment)	Binh Dinh Province
Sep 2 – 6	Operation Dan Chi 261^[36]	ARVN operation	An Xuyen and Bạc Liêu Provinces		21
Sep 2 – 29		3/1 Cavalry security operation
Sep 3		1st Battalion, 26th Infantry Regiment security operation
Sep 4 – 6		1st Battalion, 16th Infantry Regiment security and resupply operation		52	2
Sep 4 – 15		1st Battalion, 5th Marines, 2nd Battalion, 5th Marines and ARVN 2nd, 3rd and 4th Battalions, 6th Regiment search and destroy operation
Sep 4 – 15		1st Battalion, 5th Marines, 3rd Battalion, 5th Marines and 2nd, 3rd, 4th Battalions, ARVN 6th Regiment search and destroy operation
Sep 4 – Oct 8		1st Battalion 18th Infantry search and destroy operation
Sep 4 – Oct 25	Operation Seward^[37]	1st Brigade, 101st Airborne Division and 1st Battalion, 22nd Infantry Regiment search and destroy and security operation		347	27
Sep 5 – 29
Sep 6 – 9		ARVN operation		147
Sep 6 – 12		2nd Battalion, 26th Infantry Regiment search and destroy operation
Sep 7 – 12		2nd Battalion, 1st Marines and 3rd Battalion, 9th Marines search and destroy operation
Sep 8		3rd Battalion, 1st Marines search and destroy operation
Sep 8 – 9		US search and destroy operation
Sep 8 – 14		3rd Battalion, 4th Marines search and destroy operation
Sep 8 – 16		1st Battalion, 7th Marines search and destroy operation
Sep 8 – 24		5th Battalion, Royal Australian Regiment and 6th Battalion, Royal Australian Regiment search and destroy operation
Sep 13 – 22		3rd Brigade, 1st Infantry Division, 25th Infantry Division and 173rd Airborne Brigade search and destroy operation
Sep 13 – Oct 2		1/1/ Cavalry, 2/1 Cavalry and ARVN 3rd Airborne Brigade search and destroy operation
Sep 13 – Oct 30	Operation Thayer I	1st Cavalry Division, ARVN 3rd Airborne Battalion and ARVN 41st Regiment operation		232	30
Sep 14 – Nov 25		196th Infantry Brigade, 1st Infantry Division and 4th Infantry Division and 173rd Airborne Brigade operation		1,062	115
Sep 14 – Feb 13 1967		1st Brigade, 25th Infantry Division pacification operation
Sep 15 – 21		1st Battalion, 16th Infantry Regiment and 2nd Battalion, 28th Infantry Regiment search and destroy operation
Sep 15 – 24				200	36
Sep 15 – Oct 9	Operation Sioux City^[38]	173rd Airborne Brigade Combat Team search and destroy operation
Sep 15 – Nov 14	Operation Kalihi^[39]	1st Brigade, 25th Infantry Division operation		4
Sep 16 – 27		1st Battalion, 7th Marines and ARVN 4th Regiment operation to protect rice harvest
Sep 16 – Oct 19
Sep 19 – Oct 4	Operation Kamuela^[40]	1st Brigade, 25th Infantry Division search and destroy operation		13	5
Sep 20 – 22		3rd Brigade, 1st Infantry Division and ARVN 48th Regiment search and destroy operation
Sep 22 – 28		ARVN operation
Sep 23 – Oct 1
Sep 23 – Oct 30		ROKA Capital Division search and destroy operation		1161	30
Sep 24		2nd Battalion, 1st Marines search and destroy operation
Sep 25		2nd Battalion, 28th Infantry search and destroy operation
Sep 28 – 29		1st Battalion, 5th Marines and 2nd Battalion, 5th Marines search and destroy operation
Sep 28 – 30		ARVN 2nd and 8th Airborne Battalions search and destroy operation
Sep 29 – Oct 11		2/1 Cavalry security operation
Sep 30 – Oct 3	Operation Crowsnest^[41]
Sep 30 – Oct 2		1st Battalion, 5th Marines and 2nd Battalion, 5th Marines security operation
Oct
Oct 1		1st Cavalry Division and 173rd Airborne Brigade security operation
Oct 1 – 4		1st Brigade, 1st Infantry Division and ARVN 48th Regiment search and destroy operation
Oct 1 – 25		2nd Battalion, 3rd Marines search and destroy operation
Oct 2 – 24				681	29
Oct 2 – 27		5th Battalion, Royal Australian Regiment and 6th Battalion, Royal Australian Regiment search and destroy operation
Oct 3 – 10		1st Infantry Division security operation
Oct 3 – 10		ROK 2nd Marine Brigade and ARVN 4th Regiment operation
Oct 3 – Nov 20	Operation Lam Son 318	ARVN operation		179	38 ARVN, 1 US
Oct 6 – 10
Oct 6 – 15		3rd Squadron, 11th Armored Cavalry Regiment search and destroy operations
Oct 8 – 15		2nd Battalion, 7th Marines search and destroy operation
Oct 8 – 16			Bình Dương and Bình Long Provinces
Oct 8 – Dec 4	Operation Winchester^[42]
Oct 11 – 16
Oct 11 – 20		3rd Battalion, 1st Marines search and destroy operation
Oct 11 – Nov 14	Operation Kailua^[43]	2nd Brigade, 25th Infantry Division operation		67	5
Oct 11 – Nov 17 1967		173d Airborne Brigade, 199th Light Infantry Brigade and 11th Armored Cavalry Regiment security and defence operations
Oct 16		ARVN operation		14
Oct 16 – 17		US search and destroy operation
Oct 16 – Dec 3		3rd Brigade, 1st Infantry Division search and destroy operation
Oct 17 – 26		5th Battalion, Royal Australian Regiment search and destroy operation in AO Gold, a 14 square km area including Nui Thi Vai and the region north and west of it
Oct 18 – 20		ARVN operation		138	29 ARVN, 1 US
Oct 18 – 30		1st Battalion, 5th Marines search and destroy operation
Oct 18 – Dec 31	Operation Paul Revere IV^[44]	2nd Brigade, 4th Infantry Division, 2nd and 3rd Brigades, 25th Infantry Division and 2/1 Cavalry search and destroy operation along the Cambodian border		962	136
Oct 18 – Feb 1 1967
Oct 19 – Dec		11th Armored Cavalry Regiment mission to clear and secure lines of communication in three provinces near Saigon and to secure the new Blackhorse Base Camp		131	8
Oct 20 – 24		2nd Brigade, 1st Infantry Division search and destroy operation
Oct 21 – 23		3rd Battalion, 1st Marines search and destroy operation
Oct 21 – Nov 5		2nd Brigade, 1st Infantry Division search and destroy operation	Biên Hòa, Bình Dương and Gia Định Provinces
Oct 25 – Nov 28		3rd Battalion, 22nd Infantry Regiment search and destroy operation
Oct 30 – Dec 4		Company C, 1st Battalion, 327th Infantry Regiment, 1st Brigade, 101st Airborne Division search operation		118	15
Oct 24 – Feb 11 1967	Operation Thayer II^[45]	1st Cavalry Division, 25th Infantry Division and Republic of Vietnam Marine Corps operation in the coastal plains and the Kim Son and Soui Ca Valleys		1,667	193
Oct 25 – Apr 2 1967		1st Brigade, 4th Infantry Division, 1st Brigade, 101st Airborne Division and ARVN 47th Regiment operation to protect rice harvest		491	51
Oct 25 – Oct 31 1968	Operation Sea Dragon^[46]	US Navy and Royal Australian Navy interdiction of sea lines of communication and supply from North Vietnam to South Vietnam			5
Oct 29 – Dec 24		2nd Battalion, 26th Marines search and destroy operation
Oct 30 – 31		5th Battalion, Royal Australian Regiment and 6th Battalion, Royal Australian Regiment cordon and search operation
Oct 31
Nov – Jan 1970	Operation Stable Door^[47]	US Navy defence of allied shipping against VC attacks
Nov 5 – 8		ARVN search and destroy operation		109	64
Nov 5 – 19		2nd Battalion, 1st Marines, 2nd Battalion, 3rd Marines and 1st Battalion, 26th Marines search and destroy operation
Nov 6 – 7
Nov 8 – 12	Operation Hayman^[48] ^[49]
Nov 8 – 14		1st Battalion 1st Marines and 3rd Battalion 1st Marines search and destroy operation
Nov 9 – 27		ROK 2nd Marine Brigade search and destroy operation		154	38 ROK, 4 US
Nov 16 – Jan 12 67		11th Armored Cavalry Regiment and ARVN 10th Division rice harvest security operation	Bình Tuy and Long Khánh Provinces
Nov 18 – Dec 3	Operation Ingham^[50]	5th Battalion, Royal Australian Regiment and 6th Battalion, Royal Australian Regiment search and destroy operation
Nov 19 – 27		ARVN 2nd Division search and destroy operation		123	3
Nov 18 – May 14 67		3rd Brigade, 4th Infantry Division deployment from Bear Cat to Dầu Tiếng District and search and destroy operations
Nov 20 – 27		1st Battalion, 7th Marines and ARVN search and destroy operation
Nov 20 – 27		1st Battalion, 5th Marines, ROK 2nd Marine Brigade and ARVN 2nd Division search and destroy operation
Nov 24 – Dec 2		1st Battalion, 503rd Airborne Infantry Regiment search and destroy operation
Nov 25 – Dec 9
Nov 27 – Dec 23		2nd Battalion, 18th Infantry Regiment search and destroy operation
Nov 29 – Dec 5		3rd Brigade, 1st Infantry Division search and destroy operation		113
Nov 29 – Dec 7		2nd Battalion, 5th Marines search and destroy operation
Nov 30 – Dec 6		1st Battalion, 5th Marines search and destroy operation
Nov 30 – Dec 14 67		1 Battalion from each of the 1st Infantry Division, 4th Infantry Division, 25th Infantry Division, 196th Infantry Brigade, ARVN 5th Division and ARVN Rangers operation		1,043	179
Dec		1st Battalion, 26th Infantry Regiment search and destroy operation
Dec 4 – 5		11th Armored Cavalry Regiment operation
Dec 4 – 14
Dec 6 – 7		1st Battalion, 1st Marines search and destroy operation
Dec 8 – Jan 19 1967		1st Brigade, 101st Airborne Division search and destroy operation		62	20
Dec 7 – 11		1st Battalion, 1st Marines search and destroy operation
Dec 7 – 12		3rd Battalion, 5th Marines search and destroy operation
Dec 10 – Jan 12 67	Operation Blackjack 22^[51]	Special Forces Detachment B-50 Project OMEGA and Mobile Guerilla Force 768 operation
Dec 11 – 16		3rd Battalion, 9th Marines search and destroy operation
Dec 12 – Jan 21 1967		2nd Battalion, 7th Marines search and destroy operation
Dec 16 – 26		199th Infantry Brigade search and destroy operation
Dec 17 – 21		3rd Battalion, 1st Marines search and destroy operation
Dec 19 – 21		1st Battalion, 1st Marines search and destroy operation
Dec 19 – 22		1st Infantry Division cordon and search operation
Dec 20 – Feb 16 67	Operation Chinook I^[52]	4th Marines operation		218
Dec 24		1st Brigade, 1st Infantry Division route and convoy security operation
Dec 27 – 30		US and ARVN search and destroy operation		124	2 US
Dec 27 – 31		2nd Battalion, 3rd Infantry Regiment search and destroy operation

See also

• List of allied military operations of the Vietnam War (1967)

External links

• HELICOPTER Operations in VIETNAM
• Special Operations in Vietnam
• Information About Records Relating to the Vietnam War Operations Analysis (OPSANAL) System
• Naval Operations in Vietnam

Media

Notes and References

1. Web site: Vietnam Archive Operations Database. The Vietnam Center and Archive, Texas Tech University.
2. Web site: MACV Command History Chronology - 1966 . Dcbsoftware.com . 2010-07-31 . https://web.archive.org/web/20120305100137/http://www.dcbsoftware.com/ccSEA/Chronology/MACV_1966.html . 2012-03-05 . dead .
3. Book: Turner Publishing. The 1st Infantry Division in Vietnam: "The Big Red One", 1965-1970. 1997. Turner Publishing Company . 978-1-56311-100-6.
4. Web site: Vietnam War Timeline 1966. Veterans Support and Advocacy Service Australia. dead. https://web.archive.org/web/20100702185302/http://www.ausvets.com.au/vietnam/1966/ops1966.htm. 2010-07-02.
5. Book: Shulimson, Jack. U.S. Marines in Vietnam: An Expanding War, 1966. History and Museums Division, Headquarters, U.S. Marine Corps. 1982.
6. Web site: Weekly report, The Situation in South Vietnam, 2 March 1966. Central Intelligence Agency. 9 August 2010. https://web.archive.org/web/20110608120338/http://www.vietnam.ttu.edu/star/images/041/0410335001.pdf. 8 June 2011. dead.
7. Web site: Operation Quick Kick II Information for 1 Inf Div. Vietnam Helicopter Pilots Association.
8. Book: Mertel, Kenneth. Year of the Horse – Vietnam. Bantam. 1989. 978-0-553-28307-5. 246.
9. Book: Operation Shed Light Study Report, Volume 1. DCS Research and Development, Headquarters, United States Air Force. 1966.
10. http://www.faqs.org/abstracts/Social-sciences/Battle-for-the-Kim-Son-Valley-Clutched-in-the-Eagless-claw.html Battle for the Kim Son Valley
11. Web site: After Action Reports 1 . 25thaviation.org . 2010-07-31.
12. Web site: Combat After Action Report. Headquarters, 2nd Brigade, 25th Infantry Division. 17 March 1966.
13. Web site: Vietnam War Operation HARRISON . Flyarmy.org . 2010-07-21 . 2010-07-31.
14. Book: Ronnie, Randall. A Vietnam War Chronology: According to Military Assistance Command Vietnam (MACV) Records. Global Book. 2003. 978-1-58898-959-8. 15.
15. Web site: Vietnam War joint operation FILLMORE . Flyarmy.org . 2010-07-31.
16. Book: Carland, John. Combat Operations: Stemming the Tide, May 1965 to October 1966. Government Printing Office. 1999. 9780160873102. 193.
17. Web site: After Action Report 18 . 25thaviation.org . 2010-07-31.
18. Web site: Weekly Report, the Situation in South Vietnam, 20 April 1966. Central Intelligence Agency. 8 November 2021.
19. Web site: After Action Report 18 . 25thaviation.org . 2010-07-31.
20. Web site: After Action Report 19 . 25thaviation.org . 2010-07-31.
21. Web site: Weekly Report, the Situation in South Vietnam, 27 April 1966. Central Intelligence Agency. 21 May 2010. https://web.archive.org/web/20060825093218/http://www.vietnam.ttu.edu/star/images/041/04110133003.pdf. 25 August 2006. dead.
22. Web site: After Action Reports 38 . 25thaviation.org . 2010-07-31.
23. Web site: Combat After Action Report – Operation Davy Crockett conducted by the 3rd Brigade, 1st Air Cavalry Division . Department of the Army, Office of the Adjutant General . 1967-06-02 . dead . https://web.archive.org/web/20121003031703/http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD824475&Location=U2&doc=GetTRDoc.pdf . 2012-10-03 .
24. Web site: Weekly Report, the Situation in South Vietnam, 25 May 1966. Central Intelligence Agency. 21 May 2010. https://web.archive.org/web/20060825045003/http://www.vietnam.ttu.edu/star/images/041/04110134007.pdf. 25 August 2006. dead.
25. Book: Stanton, Shelby. The Rise and Fall of an American Army: U.S. Ground Forces in Vietnam, 1965-1973. Presidio Press. 2003. 978-0-89141-827-6.
26. Book: Hay, Lt GEN John. Vietnam Studies, Tactical and Material Innovations. U.S. Government Printing Office. 1974. B000Q72ZOG. 137–142.
27. Web site: Combat After Action Report – Operation Hawthorne, Headquarters 1st Brigade, 101st Airborne Division . Department of the Army, Office of the Adjutant General . 22 Jul 1966 . dead . https://web.archive.org/web/20121003031741/http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD394023&Location=U2&doc=GetTRDoc.pdf . 2012-10-03 .
28. Web site: After Action Report 18 . 25thaviation.org . 2010-07-31.
29. Book: Stanton, Shelby. Green Berets at War: U.S. Army Special Forces in Southeast Asia, 1956-1975. Ballantine Books. 1999. 978-0-8041-1884-2. 231.
30. Web site: Combat After Action Report – (RCS MACV J3/32) Operation Koko Head. Headquarters 25th Infantry Division. 2 September 1966.
31. Web site: Landing Craft Repair Ship (ARL) . Navsource.org . 2010-07-31.
32. Web site: Operation Holsworthy Page 2 . 5rar.asn.au . 1966-08-18 . 2010-07-31.
33. Web site: Operation Pink Rose Final Report . Defense Technical Information Center . 11 May 1967 . dead . https://web.archive.org/web/20071019231056/http://www.dod.gov/pubs/foi/reading_room/801.pdf . 19 October 2007 .
34. Web site: Combat After Actions Report – Operation Kipapa. Headquarters 1st Brigade, 25th Infantry Division. 6 November 1996.
35. Web site: Operation Duke . 2022-05-25 . www.84thengineers.com.
36. Web site: U.S. Naval Forces Vietnam, Monthly Historical Summary, September 1966. 7 November 1966.
37. Web site: Combat Operations After Action Report, Operation Seward, 1st Brigade, 101st Airborne Division. 6 November 1966. dead. https://web.archive.org/web/20121003031815/http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD386128&Location=U2&doc=GetTRDoc.pdf. 3 October 2012.
38. Web site: Lessons Learned, Operation Sioux City, Headquarters 173rd Airborne Brigade (Separate). 15 December 1966. 21 May 2010. https://web.archive.org/web/20110823131022/http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=AD0387609. 23 August 2011. dead.
39. Web site: After Action Reports 14 . 25thaviation.org . 2010-07-31.
40. Web site: After Action Reports 12 . 25thaviation.org . 2010-07-31.
41. Book: Starry, Donn. Mounted Combat in Vietnam. US Army Center of Military History. 1980. 978-0-405-13699-3. registration.
42. Web site: Combat After Action Report – Operation Winchester, 173rd Airborne Brigade (separate). 19 June 1967. 21 May 2010. https://web.archive.org/web/20110823130939/http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=AD0386116. 23 August 2011. dead.
43. Web site: After Action Reports 15 . 25thaviation.org . 2010-07-31.
44. Book: Stanton, Shelby. Vietnam Order of Battle. Stackpole Books. 2003. 978-0-8117-0071-9.
45. Book: Powers, Robert. 1966 The Year of the Horse. Dog Ear Publishing. 2009. 978-1-60844-202-7. 60–71.
46. Web site: Naval Operations in Vietnam . Royal Australian Navy . dead . https://web.archive.org/web/20100430173140/http://www.navy.gov.au/Naval_Operations_in_Vietnam . 2010-04-30 .
47. Web site: US Naval Forces in Vietnam, Monthly Historical Summary, May 1967. 5 July 1967. 21 May 2010. https://web.archive.org/web/20160131034522/http://www.vietnam.ttu.edu/star/images/1312/13120114001a.pdf. 31 January 2016. dead.
48. Web site: Australian War Memorial - F10117 - Operation 'Hayman' - Vietnam DPR/TV/513 . Cas.awm.gov.au . 2010-07-31 . dead . https://web.archive.org/web/20120905132942/http://cas.awm.gov.au/film/F10117 . 2012-09-05 .
49. Web site: 3rd Squadron, Special Air Service Regiment: Australian War Memorial . Awm.gov.au . 2010-07-31.
50. Web site: Operation Ingham . 5rar.asn.au . 1966-12-03 . 2010-07-31.
51. Book: Acre, James. Project Omega: Eye of the Beast. Hellgate Press. 1999. 978-1-55571-511-3.
52. Web site: Press release events during January 1967. Headquarters, U.S. Military Assistance Command Vietnam. 12 February 1967. 21 May 2010. https://web.archive.org/web/20050223190733/http://www.vietnam.ttu.edu/star/images/107/1070203004.pdf. 23 February 2005. dead.