Which statement best summarizes Russia's experience on World War I's Eastern front? A) Russian Troops served mainly as support for British troops, who treated them poorly. B) Russian Troops lost most battles, but morale remained high out of the loyalty to the czar. C) Russian troops won several battles but suffered extremely heavy casualties. D) Russian troops were extremely well equipped but still lost nearly every battle.

c) russian troops won several battles but suffered extremely heavy casualties

Explanation:

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.