Some did.
During World War II the United States used a couple different sub-machine guns such as the M3/A1 "Grease Gun", the infamous Thompson sub-machine gun the M50/55 Reising the M42 and the M2 "Hyde."
The British used the Vickers machine gun
The .45 Thompson sub-machine gun and M3 sub machine gun (grease gun) were used in WW2, Korea, and Vietnam War. A sub-machine gun is called a SUB machine gun because it uses "pistol" ammunition. The M3 sub-machinegun looked exactly like a grease gun; hence the name.
the weapons used are the following:arisaka and Thompson trench gun
In World War 2 there were three types of machine guns used: squad support weapon, medium machine gun, and Heavy Machine gun such as the Browning M2, and the M1919
They used sub machine guns, sniper rifles, rifles, pistols, anti tank weapons, and machine rifles. Examples: The Thompson, BAR (Browning Automatic Rifle), M1A1 Carbine, etc....
The Vickers machine gun was the primary machine gun they used in WWI.
machine guns
They all did.
the German military in world war 11
It was the Enigma machine.