Following the attack on Pearl Harbor, DeShazer enlisted, becoming a Corporal stationed at
Pendleton Field in Eastern Oregon. DeShazer, along with other members of the
17th Bomb Group, volunteered to join a
special unit that was formed to attack Japan. The 24 crews selected from the 17th Bomb Group received intensive training at
Eglin Field, Florida, for three weeks beginning on 1 March 1942. The crews undertook practice carrier deck takeoffs along with extensive flying exercises involving low-level and night flying, low-altitude bombing, and over-water navigation. Their mission would be to fly modified
B-25 Mitchell bombers launched from an aircraft carrier to attack Japan. The unit formed to carry out the raid on Japan soon acquired the name, "Doolittle's Raiders", after their commander,
Lieutenant Colonel Jimmy Doolittle. Staff Sergeant DeShazer was the bombardier of B-25 #16, the
"Bat (Out of Hell)", commanded by Lieutenant
William G. Farrow, the last of the 16 B-25s to launch from the
USS Hornet. The raid was a success despite the task force being sighted and forced to launch the bombers earlier than planned, but part of the plan included flying the airplanes to bases in
China, where they were to be refueled and made part of the
Tenth Air Force. ==Japanese prisoner of war==