| Unit Name: | Marine Scout Bombing Squadron 245 |
| Dates: | 15 September 1943 – 17 November 1945 |
| Branch: | United States Marine Corps |
| Type: | Dive Bomber squadron |
| Role: | Reconnaissance Air Interdiction Close air support |
| Command Structure: | N/A |
| Nickname: | Red Mousie Squadron |
| Battles: | World War II |
| Aircraft Bomber: | SBD Dauntless |
Marine Scout Bombing Squadron 245 (VMSB-245) was a dive bomber squadron in the United States Marine Corps during World War II. The squadron, also known as the "Red Mousie Squadron", operated from Midway and Makin Atolls, Majuro and Ulithi while overseas. The squadron was decommissioned on 17 November 1945, shortly after the end of the war.
VMSB-245 was commissioned at Marine Corps Air Station El Toro on 1 July 1943. After training for a few months, the squadron deployed to Marine Corps Air Station Ewa, Hawaii arriving there on 31 December 1943. On 5 January 1944, it moved to Midway Atoll to conduct anti-submarine patrol duty. The squadron returned to MCAS Ewa on 1 April 1944.
On 5 May 1944, the squadron left Hawaii on board the USS Copahee headed for Majuro where they arrived on 15 May. Later in the same month, they moved to Makin Atoll from which they conducted combat operations against bypassed Japanese garrisons in the Marshall Islands from 1 June until 29 October 1944. Late October saw the squadron move back to Majuro where they continued carrying out strikes.
On 6 January 1945, two VMSB-245 SBD Dauntless dive bombers mistook the United States Navy submarine for a Japanese submarine and dropped two depth charges on her after she submerged off Majuro.[1] Spadefish suffered only superficial damage and no casualties.[1] March 1945 saw the squadron move again, this time to Ulithi, where it remained until the end of the war in August 1945.
VMSB-245 was decommissioned on 17 November 1945.