Who led the red army and made it an effective fighting force

In January 1918, after significant Bolshevik reverses in combat, the future People's Commissar for Military and Naval Affairs Leon Trotsky headed the reorganization of the Red Guards into a Workers' and Peasants' Red Army in order to create a more effective fighting force.

it the big letter b heart my answer

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.