Question

which events in 1917 caused the united states to enter world war i? check all that apply.
britain intercepted the zimmerman telegram.
germany sank the passenger ship lusitania.
mexico attacked the united states on us soil.
germany resumed unrestricted submarine warfare.
britain and france asked america to join the war.

Explanation:

1. Britain intercepted the Zimmerman Telegram: The Zimmerman Telegram (proposing Mexico - US conflict) was a key factor in 1917 that influenced US entry.
2. Germany resumed unrestricted submarine warfare: In 1917, Germany's resumption of this policy threatened US ships, pushing the US towards war.
3. Germany sank the Lusitania in 1915, not 1917, so it's not a 1917 event.
4. Mexico did not attack the US on US soil (the Zimmerman Telegram proposed an alliance, not an actual attack).
5. Britain and France's request alone wasn't the main cause; the submarine warfare and Zimmerman Telegram were more impactful.

Answer:

A. Britain intercepted the Zimmerman Telegram
D. Germany resumed unrestricted submarine warfare