True, blitzkreig style of fighting was first introduced in World War 2.
This statement is true. Japan started the war with the United States when they attacked without warning and did not declare war on the US. Within days Germany declared war on the US and the US declared war on Japan. The US then entered World War 2 as well as Japan.
After World War 2, the US had the strongest economy in the world.
A true statement about the Korean War is that it lasted for 3 years, 1 month and 2 days. It is estimated that 2.5 million civilians were killed or wounded in the war.
It became clear that the nations that lasted the longest would win.
True
it was the strongest economy in the world
true
What are the options?
Bankrupt.
True
NO! Radio was in use well before world war 1!!!!