The greatest discovery was the atomic bomb, which was developed by the US in the Manhattan Project and used against Japan.
Other developments that came out of the war were jet aircraft and ballistic missiles, both improved by German scientists during the war. The V-2 rocket used against Britain was the basis for much of the early work on space exploration.
WW2 was not "discovered " it was a war that the world was involved in on two fronts.
No
The Polanders
The poisonus gas you are referring to is Mustard Gas and was discovered in World War 1 NOT World War 2. It was a highly deadly gas that could kill you the minute you breathed it. It blinded thousands, caused neurological damage to the nervous system and destroyed the upper respiratory system.
During World War 2 only 600 Swedish Civilians were killed during World War 2.
There was no battle line during World War 2.
in 1942 during World War 2
What was a popular drink during world war 1 & 2? What was a popular drink during world war 1 & 2?
it was during world war 2
world war 2
The Nazis were involved in Denmark during the World War 2.
The Nazis were involved in Denmark during the World War 2.