1) How did Germany's use of unrestricted submarine warfare lead to American entry into World War I?
A: Germany's use of unrestricted submarine warfare lead to American entry into World War I after German submarines destroyed American ships, killing 128 Americans.
2) How did Congress ensure that the military had enough troops to fight the war (World War I)?
A: Congress ensured that the military had enough troops to fight the war by drafting soldiers.
3 answers
Good answers.
Answer #1 is fine, and true. The actual impetus for U.S. troops to move into Mexico was a Mexican raid on a New Mexico town.
Oh, I meant that for your question above. Your answers here are very good, as Ms. Sue has said.