The 336th Training Group is the combat survival training group of the United States Air Force. The group is located at Fairchild Air Force Base, Washington, with one subordinate unit at Naval Air Station Pensacola, Florida, and one at Eielson Air Force Base, Alaska. The Group operates the United States Air Force Survival School. The school provides instruction in Survival, Evasion, Resistance and Escape (SERE) training, primarily to aircrew. Instruction concentrates on the principles, techniques, and skills necessary to survive in any environment and to return safely. The unit's historical lineage goes back to the 336th Bombardment Group which was a World War II United States Army Air Forces training organization. It served in the United States from July 1942 to May 1944. History The unit was established in mid-1942 by III Bomber Command as a replacement training unit (RTU) for Martin B-26 Marauder crews. Graduates from Training Command technical, gunnery and twin-engine flight schools would be trained on B-26s, then after graduation be assigned to combat units overseas. The group was inactivated in May 1944. In 1949, Strategic Air Command (SAC) was concerned about the ability of its aircrews to survive and evade capture if shot down behind enemy lines. It established the 3904th Training Squadron at Fort Carson, Colorado, on 16 December to provide survival and escape and evasion skills for its crews. Little more than a year later, on 21 October 1950, it established the 3904th Composite Wing to include the training squadron, the specialized 8th Air Rescue Squadron, and support units. On 1 September 1951, the 3904th moved to Stead Air Force Base, Nevada, and the United States Air Force Survival School was established under the wing. The Korean War made it apparent that this training should not be limited to SAC, and on 1 September 1954, the 3904th was transferred to Air Training Command (ATC) and renamed the 3635th Combat Crew Training Wing (Survival). This wing changed its name to the 3635th Flying Training Wing (Advanced) on 15 July 1958 when it added helicopter training to its mission. The 3635th continued to provide Survival, Evasion, Resistance and Escape (SERE) training at Stead until the spring of 1966, when Stead closed and the survival school was moved to Fairchild Air Force Base, Washington. Fairchild Air Force Base The 3635th Wing did not move with the school. Instead, ATC discontinued it at Stead on 15 June 1966