It depends on which war you're referring to. I feel that the answer you're looking for is the radio, though.
Leonardo da Vinci. It is his most famous and valuable painting ever.
Sailed for Spain, brought back natives from Hispanola to show that he found new converts for the Catholic church. 4 voyages between 1492 &1504
Press on internet explorer press on the tab write your answer and youll get it
just kidding the answer is the west