During the early years of World War II, the United States

the United States declared war on japan because Japan was responsible for the bombing of pearl harbor after that they became fully engaged in World War 2 unlike World War 1.

Explanation:

hope this helped.

1.d 2.a c.!

your answer is 1930's

explanation

this is just around the time the great depression was starting and putting the us ecnomy into ecnomic failure causing the goverment to take a much larger rule to try and pieace it back together