The Atomic bomb(s) .
Because it literally changed history
There can be no doubt that the most deadliest weapon of world war 2 was the nuclear bombs that dropped on Hiroshima.
the tank
Propaganda.
You can get them anywhere from Bezid.com to Ebay.com
hydrogen bomb
World War 2
the jews
It was the ultimate weapon to end the war.
In France they planted a tree when world war 1 was ended and the tree fell at world war 2 so what changed no more tree
The atomic weapon.
The nuclear bomb.