The best weapon was the German mg42. It was so good that it is still in service in parts of the world today. It has an immense rate of fire.
Atomic bomb.
There can be no doubt that the most deadliest weapon of world war 2 was the nuclear bombs that dropped on Hiroshima.
During World War II, the 'best' weapon that was designed, constructed, and utilized, when measured in terms of overall power, was the atomic bomb. Through the effective (if also regrettable) use of this weapon, the world-wide conflict was finally brought to a conclusive end in August of 1945.
because the countries were showing of who had the best weapon like America were showing of the 1st nuclear missile
hydrogen bomb
the tank
You can get them anywhere from Bezid.com to Ebay.com
Propaganda.
It was the ultimate weapon to end the war.
The nuclear bomb.
The atomic weapon.
The A-bomb.