What event helped provoke the US to enter world war 1?

Answer 1

There are two primary causes for the US entering World War I. First and foremost is the sinking of the Lustitania and Unrestricted Submarine Warfare. The concept of Unrestricted Submarine Warface (USW) was that any ship, flying anyflag, neutral country or not, around the coast of the United Kingdom would be treated as a warship, and promptly attacked. When the Lusitania was sunk in 1914: roughly 120 American civilians were killed. Afterwords, Germany suspended USW until 1917. In 1917 Germany resumed USW, after repeated warnings from the US that it would mean War.

The second reason is the Zimmerman Telegram, sent to Mexico on Germany's behalf. It promised German support if Mexico would open a domestic front and invade the US, should it come to war. Naturally, the citizenry was outraged.

Answer 2

Germany attempting to form a military alliance with Mexico.

Answer 3

Germany attempting to form a military alliance with mexico

Answer 4

When the Germans sunk passenger ships and when the Zimmerman tellegram was sent to mexico from Germany telling mexico to attack the u.s