contestada

Out of the following list, select the items that were a major cause of World War I. (626-632)


Militarism


Munich Conference


Imperialism


Lusitania


Zimmerman Note


Invasion of Poland


Assassination of Franz Ferdinand


Nazi-Soviet Non-Aggression Pact


Unrestricted Submarine Warfare


Pearl Harbor

Out of this list, which of them were a major cause to WW1?