Answer:On April 6, 1917, the U.S. joined its allies--Britain, France, and Russia--to fight in World War I. Under the command of Major General John J. Pershing, more than 2 million U.S. soldiers fought on battlefields in France.
Step-by-step explanation:
These where the allies to Push the enemy power away to their own country these allies called them selves UN untied nations,When World War I broke out across Europe in 1914, President Woodrow Wilson proclaimed the United States would remain neutral, and many Americans supported this policy of nonintervention. However, public opinion about neutrality started to change after the sinking of the British ocean liner Lusitania by a German U-boat in 1915; almost 2,000 people perished, including 128 Americans. Along with news of the Zimmerman telegram threatening an alliance between Germany and Mexico, Wilson asked Congress for a declaration of war against Germany. The U.S. officially entered the conflict on April 6, 1917.