The United States entered World War I primarily due to several factors, including unrestricted submarine warfare by Germany, which threatened American lives and commerce, exemplified by the sinking of the Lusitania. Additionally, the interception of the Zimmermann Telegram, in which Germany proposed a military alliance with Mexico against the U.S., heightened tensions. Economic ties to the Allies, particularly through loans and trade, also motivated the U.S. to support their cause. Ultimately, these factors combined led President Woodrow Wilson to seek a declaration of war in April 1917.
It was important in that it provided a massive new pool of manpower to a war torn Europe.
If you are referring to World War 2, the Japanese attack on the US base at Pearl Harbour on 7 December 1941 brought the US into the conflict.
There was only one reason that America became involved in World War II and that was the Japanese attack on Pearl Harbour on 7th December 1941. If that attack hadn't happened, the US would probably not have become involved because US public opinion at the time was that the existing fighting was a 'European War' and nothing to do with America.
Isolationists and America Firsters
The Zimmermann Telegram or Note
No
To what end? The US gained no territories as a result of the First World War.
because the U.S was gay
It was important in that it provided a massive new pool of manpower to a war torn Europe.
because the U.S was gay
Exrtra canon fodder, the allies could now out die the Germans, simple.
If you are referring to World War 2, the Japanese attack on the US base at Pearl Harbour on 7 December 1941 brought the US into the conflict.
nerd
they guns
because there cool
I really don't know
Not getting involved in a European conflict. It wasn't called World War I then, obviously. Wilson "kept us out of war"; the country was not eager to get involved.