| Conflict: | Operation Chopper |
| Partof: | The Vietnam War |
| Date: | 12 January 1962 |
| Place: | South Vietnam |
| Result: | US/South Vietnamese victory[1] |
| Combatant1: |  United States |
| Combatant2: | Viet Cong |
| Commander1: | Nguyễn Xuân Vinh |
| Strength1: | 1,000 |
| Strength2: | 50 |
| Casualties1: | None |
| Casualties2: | 6 killed |
Operation Chopper occurred on 12 January 1962 and was the first time U.S. forces participated in major combat in the Vietnam War.
On 11 December 1961, the USS Core (T-AKV-41) docked in Saigon with 32 U.S. Army Piasecki H-21 helicopters and 400 crewmen of the 8th Transportation Company (Light Helicopter) and the 57th Transportation Company (Light Helicopter). A little more than 12 days later, Operation Chopper commenced.[2]
The helicopters transported over 1,000 Army of the Republic of Vietnam (ARVN) paratroopers for an assault on a suspected Viet Cong (VC) stronghold west of Saigon. The VC were surprised and soundly defeated.[2]
This operation heralded a new era of air mobility for the U.S. Army, which had been slowly growing as a concept since the Army formed twelve helicopter battalions in 1952 as a result of the Korean War. These new battalions eventually formed a sort of modern-day cavalry for the Army.[2]
On 15 April 1962 the United States Marine Corps began Operation Shufly, the rotating deployment of Marine helicopter squadrons, associated maintenance units and air traffic control detachments to South Vietnam to improve the mobility of ARVN forces.[3]