How did alliances in europe contribute to the start of world war i? (4 points) when any nation resorted to waging war, allied nations were pulled into the conflict. alliances meant that large, powerful countries could abstain from joining conflicts. the alliances were not enforced, so nations typically ignored them. alliances prevented conflict, so they did not contribute to the start of world war i.

Alliances required nations to defend each other against aggression.

Explanation:

by 1890, the united states had by far the world's most productive economy. american industry produced twice as much as its closest competitor--britain. but the united states was not a great military or diplomatic power. its army numbered less than 30,000 troops, and its navy had only about 10,000 seamen. britain's army was five times the size of its american counterpart, and its navy was ten times bigger. the united states' military was small because the country was situated between two large oceans and was surrounded by weak or friendly nations. it faced no serious military threats and had little interest in asserting military power overseas.

um is there supposed to be choices?