mr
Economic gain.
The U.S. entered WWI in 1917 and the war ended in 1918.
very
Japanese attack at Pearl Harbour. That's World War 2. The United States entered World War I after the Zimmermann note, which offered German aid for a Mexican invasion of the US, was intercepted, translated and sent to Woodrow Wilson by the British.
The Franco-Prussian War was not directly related to the entry of the US into World War I.
do you mean what caused us entry into world war one? if so then the sinking of the USS Lusitania by German u-boats was what caused American entry into the war
the entry of US troops.
mr
The Japanese sneak attack on Pearl Harbor propelled the US into the war.
nerd
The attack on Pearl Harbor.
yes
Economic gain.
The Allies.
pearl harbour
The U.S. entered WWI in 1917 and the war ended in 1918.