What factors contributed to America joining World War I?

Answer 1

The big thing was Germany trying to get Mexico to declare war on us.

Answer 2

Two big things the Zimmerman note that proposed that Mexico should attack the USA. Unrestricted submarine warfare which the Germans resumed in 1917 and pushed us into that war.

Answer 3

The Germans sank a boat.

Ignore the guys that talked about the archduke. That's what started the war, but not what got America in the fight.

Answer 4

Entangling Alliances.
1. Serbians assasinated the Archduke
2. Austria had to declare war on Serbia
3. Russia had to declare war on Austria
4. Germany had to declare war on Russia
5. France had to declare war on Germany
6. England had to declare war on Germany
7. America always defends England

.

Answer 5

Two things. The German navy was interfering with our naval commerce. And, the Germans were also inciting Mexico to invade us. Naturally, Germany became a threat to our national interests, forcing us to join the Allied effort against them.

Answer 6

the sinking of the Lusitania and the Zimmerman note (a german note to Mexico trying to persuade Mexico to invade America, and in turn would prevent American intervention in europe)

Answer 7

A number of factors, but they were driven by the military industry's desire to sell weapons.

In addition, most people of that time went to church everyday, and many churches preached that we should go fight the "Godless Huns".

Answer 8

We were fresh fulla piss an' vinegar, right after the civil war...it was only 40 something years.

Answer 9

the sinking of the Lusitania and the Zimmerman note