Which of the following was NOT one of the main causes of World War 1? Nationalist pride and a belief that country's were superior to one another

An increase of industrialized military weapons such as tanks, submarines, and machine guns

Imperialism and the competition for colonies overseas

The assassination of Kaiser Wilhelm II

answer; ///(1) blank; henry clay; (2) blank; secretary of state; (c)is your answer; ///good luck

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

um hi i’m new here but i have an opinion i guess. i think we are but when i say war i don’t mean fighting i mean political rallies differing opinions and cultures and ideas and they all clash so hard. not all wars are fought on a battlefield. most are fought in our minds and minds of others. somethings gonna have to change and i honestly think a ‘war’ is the best way to do it. fight it out. stand up for what you believe. it’ll work out. freakin united states of america we’ve got this.

answer on ed.

b: "ethnic heritage."

hope i someone! : )