What was Japan's role in WWII?

Japans role in WW2 was their greed in biological warfare. They are mostly known for the bombing of Pearl Harbor and getting the United States involved. Japan's Air Force also dropped massive amounts of ceramic bombs filled with bubonic plague-infested fleas in Ningbo, China. These attacks would eventually lead to thousands of deaths years after the war would end.

Explanation:

the answer is b, encourage free trade

well, i can't read it so i'll ask you questions about it : )

if you were a reader and you read the introduction, would you want to read more?

does it start with a question? if so, is it something you would want to read about?

and ask any friends or family for their opinion : )