What could have caused u. s. imperialism? a) the success of the russian-japan war and the colonies the united states saved. b) the success of the spanish american war and the colonlies received from that victory. c) the dangerous armament race in europe. d) the u. s acquistion of alaska and hawaii.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

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