Surveys of WWII infantrymen carried out by U.S. Army Brig. Gen. S.L.A. Marshall found that only 15 to 20 percent had fired their weapons in combat, even when ordered to do so.

美国陆军准将Marshall推动的针对二战步兵的研究显示，在战斗中即使被命令开枪，也只有15%-20%的士兵真的开枪。