The Wilmot Proviso was a proposal by David Wilmot that was supposed to solve the issue of whether or not slavery would exist in the territories that the United States received after the Mexican-American War. Wilmot wanted to forbid slavery in these new territories gained by the US. However, this proposal does not pass in Congress and instead the issue of slavery in the new territories gained in the Mexican Cession was resolved with the Compromise of 1850.
B. Russia backed out of the war. The Treaty of Brest-Litovsky signified Russia's exit from the War. In November of 1917 Russia was having its own problems. During this time the Russian government was being overthrown and a communist regime being implemented by Lenin.
