the united states wasn't on any ones side they were neutral
FDR was , of course , on the side of the Allies .
The triple entente
The British and the USSR fought along side the United States during this war.
World War I Victory Medal - United States - was created in 1919.
Suspicion of Germany's autocratic government
Both had Germany, Austria(annexed in WW2), and Italy on the same side initially with Italy switching sides later in the war. Both wars had the United States, Britain, and France on the opposite side of the war with United States coming in after the war began. Also, both wars really started in Europe and then spilled over into the rest of the world
The Zimmerman telegram was published in the United States on March 1, 1917. It was a coded telegram asking Mexico to join Germany's side on World War I and Germany promised that if they join them that they would get their lost and back from the United States. Here is what they lost to the United States: New Mexico, Arizona and Texas. The zimmerman Telegram was the last straw for the United State and on April 6, 1917 the United States declared war on Germany.
the united states side.
Germans WERE the opposite side from the United States, France, and the U.K. They were with Autria-Hungary and the Ottoman Empire
Woodrow Wilson was part of the allies during ww1 he was the president of the united states and the united states were on the allies side
the French.
The Union or the United States