The main cause was best described using the acronym: MAIN. Militarism: Germany wanted to dominate with military. Alliances: Countries were aligning with each other, creating the Central Powers and the Triple Alliance. Imperialism: Control of the colonies. Nationalism: Belief that their country is superior, causing all countries to be over confident in their belief of who's the best
America Joined the War Because....
In 1915, German U-Boats sunk the British passenger ship, the Lusitania, after having believed the ship to be smuggling arms.
The Zimmerman Telegram was the last straw for the United States. British intelligence intercepted a telegram from Germany to Mexico stating that if Mexico joined Germany to help defeat the United States then they would be given back the land that was taken from them by the United States.
Profile of An American Soldier
Henry Johnson was a famous member of the "Harlem Hellfighters" which was a National Guard unit that consisted of all-blacks.
In 1918 he was serving sentry duty in the Argonne Forest with another soldier. Later into their shift they were attacked by 20 German troops. Both men were severely wounded, but when the Germans were attempting to take his partner as prisoner, Johnson began to fight back with hand grenades and his rifle. After those were gone he used his rifle in hand to hand combat. When his rifle broke he used his knife to save his partner. In 1996 he was awarded the Purple Heart and in 2003 he received the Distinguished Service Cross.
"As a soldier, I survived World War I when most of my comrades did not." -Lester B. Pearson