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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
mr
the entry of US troops.
nerd
The Japanese sneak attack on Pearl Harbor propelled the US into the war.
yes
The attack on Pearl Harbor.
Economic gain.
pearl harbour
The Allies.
The U.S. entered WWI in 1917 and the war ended in 1918.