A 303 rifle
: The above is one answer. However, if one defines weapon as "that which is used to kill people", then the gas used at the concentration camps, principally Zyklon-B, was the most used weapon.
The most common one that was used as a weapon in World War 1 is called the Artillery
The most common method was with artillery.It is NOT a biological weapon, it is a chemical weapon.
The most dramatic weapon they used was machine gun, explosives, and airplanes..
The Battle Axe
There can be no doubt that the most deadliest weapon of world war 2 was the nuclear bombs that dropped on Hiroshima.
The Lee-Enfield rifle, (SMLE Mk III).
No, wine was never used as a weapon during World War 2. If you watched the most recent episode of "Penn and Teller Tell a Lie" on Discovery Channel, then you would know that it was a BIG FAT LIE.
the tank
Propaganda.
Mustard Gas
Propaganda against communism.
The Atomic bomb.