Hitler killing Jews
In World War 2, the bombing of Pearl Harbor by the Japanese drew the U.S. into the war.
Germany's invasion of Belgium, the sinking of the Lusitania, and the Zimmermann note drew the U.S. into World War 1.
The treacherous Japanese attack on Pearl Harbor on December 7th, 1941 drew the US into the war.
The Japanese bombing of Pearl Harbor.
Bombinmg pearl harbor
The Zimmerman Telegram and the sinking of the Lusitania-
Because Germans attacked our ships......
Yes, it was the attack of the US pacific fleet by the Japanese Navy that drew the U.S. into the war.
At the beginning of the war the US did... absolutely nothing, refusing to get invovled in Europe's affairs.
December 7th, 1941. The surprise attack on Pearl Harbor by Japan.
The War of 1812, western expansion, and finally the sinking of the Lusitania dragging America into it's first world war.
There was no single event that drew the US into World War I in 1917. The sinking of the Lusitania in 1915 along with continued submarine warfare against American commerce made the US entry into the war almost inevitable.
The US moved from preparation to direct action
the Nazis convinced them after their ally.
Thier were a total of 120,144 lost in the war but 36,931 were killed in action. allie
The German government announced the reopening of unrestricted submarine warfare in 1917. This action brought the US to declare war on Germany.
That all depends on which war you are asking about , doesn't it? The American revolution, the war of 1812, the Mexican war, the Mormon War, the US Civil War , The Great War (aka the first World War), the second world war, the Korean war (which was a police action), the war in Viet Nam, The Panama Action, the Granada incident, or the Gulf war (I, II, III,IV) each had a separate , distinct cause. The generic answer is that some one got mad at somebody about something and went to war.
The Japanese attack on Pearl Harbor in Hawaii on December 7, 1941.
rejection of the treaty of versailles
The German U-Boat--sinkings of the Lusitania and numerous cargo/merchant vessels even just off our coast lead to US involvement