Hewitt They’re Fighting Harder Than Ever 1943. The question is asked by a soldier in the foreground shown attacking the enemy while his buddies, waving M1s and Tommy guns, rally around an M4 Sherman tank as they press their assualt. The Sherman tank was America’s main battle tank during most of WW II. The Thompson submachinegun was invented in 1918 by Brigadier General John T. Thompson. It’s sometimes referred to as he Tommy Gun or the trench sweeper. It wasn’t used during World War I because the war ended before it could come into play. Actually, it was Al Capone and other gangsters. 28×22 near mint, conservation backed.
Bibliography: Derek Nelson The Posters that Won the War, page 68.