What country entered on the Eastern (against Germany)?

I think it was 11 countries

Like Czechoslovakia ,Austria ,Poland Denmark ,Norway ,Belgium ,The Netherlands,France, Britain the Chanel Islands,The Soviet Union ,and Italy!

answer; ///i believe that the correct answer is (b)arches and domes; ///

mosques-hypostyle halls with lots of space.towers called minarets flanks the luck

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.