<span>More slaves were needed in the colonies.
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The US introduced industrial power and new weapons. To protect their country from being taken over by the US or another foreign power, Japan decided to become a "western" power. The US opening Japan to trade exposed them to the methods of a modern country.
Answer:
Worked together to build war supplies for the Allies
Explanation:
During World War II, American industry and government "worked together to build war supplies for the Allies."
World war two which lasted between 1939 to 1945, had the United States of America joined the war later. Before and after entering the war entirely, the country, through its industry, was the primary source of producing war supplies such as ammunition, weapons, and other supplies to Allies to combat the Germans and their Alliances in Italy and Japan.
