How did militarism play a role in sparking world war i?
-each of the major powers considered itself superior to the others.
-each of the major powers considered its military strength superior to others.
-all of the major powers considered war to be part of a valid foreign policy.
-all major powers believed they could threaten war and none would call their bluff.

Explanation:

Militarism assumed a role in starting World War I since all the major powers believed war to be a piece of a substantial foreign policy.  

Militarism will in general be characterized contrary to the peace movements of current times. Historically, the term was utilized to allude to explicit states associated with imperialism.

All of the major powers considered war to be part of a valid foreign policy.

Explanation:

Militarism is a belief that a nation should develop or expand its powers by using a strong military. Before WWI military started to increase its influence on many European countries especially Germany and Russia. When tension started to rise, countries started to create a series of secret alliances that eventually led to an armaments race among the European powers. All of this led to the war.

the answers are 1 and 4