What prompted the us to enter world war 2
- What did the us enter world war 2
- In what year did the u.s. enter world war 2
- What attack prompted the us to enter world war 2
- What event prompted the us to enter world war 2
- What caused the us to enter world war 2
- What event caused the us to enter world war 2
- What event led the us to enter world war 2
- What event forced the us to enter world war 2
- What pivotal event led the us to enter world war 2
- What made the us enter world war 2
- Which action prompted the us to officially enter world war 2
- What day did the us enter world war 2
- What date did the us enter world war 2