What were the reasons for American involvement in World War I?

Answer 1

American Involvement in World War 1 was based on various factors, from economics to Wilson's "Moral Diplomacy". Initially America wanted to remain neutral in the war but their efforts at neutral trade were thwarted by German U-Boats, firing on ships without warning and sinking supplies, weapons, and passengers. The most famous instance was that of the Lusitania in 1915. Sinking in a mere 18 minutes she took 1,198 people down with her, included in the toal 130 Americans. Rich Propaganda and Nationalism pushed people to support the Allies, these feelings often rebounding on immigrants in the U.S. In the end President Wilson declared entrance into the war as "a war to end all wars" and a way to "make the world safe for democracy".

Answer 2

it first started with the sinking of the Lusitania which was shot down by a german U-Boat, many Americans died. then in 1917 there was the zimmerman telagram in which Germany was calling Mexico to attack the us the british got the telegram waited then used it o they could go to war in later 1917.