The Russian Revolution took place in 1917, during the final phase of World War I. It removed Russia from the war and brought about the transformation of the Russian Empire into the Union of Soviet Socialist Republics (USSR), replacing Russia’s traditional monarchy with the world’s first Communist state. The revolution happened in stages through two separate coups, one in February and one in October. The new government, led by Vladimir Lenin, would solidify its power only after three years of civil war, which ended in 1920.
New bills can be proposed by the memebers of the House, so you would want to present your idea to one of them, so they can formally propose it as a bill.
The best way to integrate African-American soldiers with whites would be to integrate all the units at once to push the different races to socialize. (I recommend rewording and trying to lengthen but this is the best I got based on my research!)