The United States entered World War II primarily due to the Japanese attack on Pearl Harbor on December 7, 1941, which resulted in significant loss of life and damage to the U.S. Pacific Fleet. Prior to this, the U.S. had been providing support to Allied nations through measures like the Lend-Lease Act, but public opinion was divided on entering the war. The attack galvanized American sentiment and led Congress to declare war on Japan the following day. Subsequently, Germany and Italy declared war on the U.S., solidifying America's involvement in the conflict.
Japanese attack on pearl harbor in 1941
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The American Fleet was anchored in Pearl Harbor, Hawaii. The Japanese bombed Pearl Harbor on December 7, 1941. It was a surprise attack. The United States declared war on Japan. It caused the United States to enter World War 2.
Germany.
a German sumbarine sank a u.s. ship which caused the united states to enter world war II. I am not a 100% sure. Im only ten.
Germany's practice of unrestricted submarine warfare that led to the sinking of the Lusitania and the Zimmerman telegram, in which Germany promised Mexico its old lands in California, Arizona, and New Mexico if Mexico attacked the United States all led to the United States' entrance into World War I.
The Jappenesse bombed Pearl Harbor.
Japanese attack on pearl harbor in 1941
The United States declaration of war is from 6 April 1917.
Jeannette Rankin did not want the United States to enter the World War 1.
That is a complex answer. You should be more specific on what you want to know. Like what led up to to the war, that caused Germany to let Hitler come to power. Or what led the United States to enter the war.
Japan bombing Pearl Harbor.