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.