WWI causes

1.) Militarism: the belief or desire of a government or people that a country should maintain a string military capability and be prepared to use it aggressively to defend or promote national interests.
Alliances: a union or association formed for mutual benefit between countries or organizations.
Imperialism: a policy of extending a countries power and influence through diplomacy or military forces
Nationalism: patriotic pride for your nation
2.) The spark of WWI was the assiasanation of Austria's Archduke Franz Ferdinand and his wife Sophie.
3.) 1915: Sinking of Lusitania: German U- Boats sunk the Lusitania, which shipped people and goods across the Atlantic Ocean between the United States and Great Britain.
     1916: Sussex pledge: A promise by Kaiser regarding the conduct of attacks on merchant ships by German U- Boats.
     1917: Zimmerman note: It was a telegram by a foreign German Foreign Minister Arthur Zimmermann to the German Minister to Mexico, Von Eckhardt, offering United States territory to Mexico in return for joining the German cause.
     1918: Unrestricted sub warfare: Is a type of naval warfare in which submarines sink vessels such as freighters and tankers without any warning.