The chronology that led up to World War I. What action taken by a national government started the hostilities?

d. it adversely affected american productivity

answer; taking up arms to defend the nation;

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.

this is a good question! i'll do some research and come back when i have the answer!