What technology was new to world war ii and the united states most in its war with japan?

Aircraft Carriers

Explanation:

Airplanes were nothing new to warfare by the time World War II came along. However, aircraft carriers WERE a new technology. It allowed the U.S. Navy to take its airplanes throughout the Pacific, weakening Japan severely. Remember that machine guns were actually first used in warfare at the end of the 1800s.

the answer is d trust me

i think u are supposed to write a long-essay answers to the long-essay questions