It wasn't really a battle, it was an attack. The attack onto Pearl Harbor to be exact.
The Battle of Midway and the dropping of the atomic bombs on Hiroshima and Nagasaki led to the end of World War II.
Battle of the Marne.
Korea was the FIRST "Hot" battle of the Cold War. The "Hot" battle commenced in June of 1950.
General John J. Pershing led the American Expeditionary Force (AEF) in world war I. Key American battles were the battle of Belau Wood and the Argonne-Muse Offensive.
America became involved in World War I due to a variety of reasons: the sinking of the Lusitania that led to American deaths, the publishing of the Zimmermann Telegram which promised Mexico some American territory, and their closeness with the Allies in World War I.
The battle of Wilderness led to the battle of Spotsylvania.
During the Battle of Trenton the American troops were led by General George Washington. The Hessians and British troops involved in this battle were led by Colonel Rahl.
There were a dozen city-states involved in the battle, one of which was a contingent from Sparta led by their king Leonidas.
You have the answer in your question. It was the battle of Yorktown.
Fort Sumter
None. ___ A big effect. The actions of the Nazis in Europe led to a global war, one in which Canada was involved.
Western Bloc