The reason was because of slavery and books
Japan Attacking Pearl Harbor.
world war one and world war war two
There was several factors that led to World War One. One of the major causes of the war was the assassination of Archduke Franz Ferdinand and his spouse.
the killing of jews the attack of pearl harbor
Some of the major battles of World War I include the Battle of Tannenberg, the Battle of Arras, The Battle of Verdun, and the Battle of the Somme.
One of them was the assassination of Archduke Franz Ferdinand of Austria by Gavrilo Princip
Japan's invasion of China and its attack on the US at Pearl Harbor. Italy's invasion of Ethipoia. Germany's Invasion of Poland and Russia.
Militarism, the other three causes for US entry into the war are imperialism nationalism and alliances.
The Treaty of Versailles
The cause was German and Austrian aggression.
world war 2 world war 1 and battle on bunker hill are a few :D
This is clearly homework. You need to open the history book.