Depends. What war are you talking about? If it's WW1, then it's because everyone was stupid at the time and thought their enemies did it and one thing led to another.
Answer:
A,D,E
Explanation:
a: congress enacted the larges single tax cut in U.S history
c: Reagan's adminisration balanced the national budget "supply-side" economics
d: Reagan's adminisration eliminated many govornment regulations on business
Answer:
heyyyyyyyyyyyyyyyyyyyyyyy