The Thompson submachine gun and the M3 submachine gun, two classic submachine guns (SMGs), helped American GIs win World War II. Both fired the same powerful and ever-beloved .45 ACP (Automatic Colt ...
Britain would fight on, he ordered. Photo: Churchill examines a Tommy gun during an inspection of invasion defences near Hartlepool, 31 July 1940. (IWM H2646) The crises facing Churchill.