Well, not much. Let's go to the Thought Bubble. The Treaty of Versailles, which ended World War I, fixed the blame for the war on Germany, which proved ruinous to the German economy and destructive to its political institutions, and unless you're really nostalgic for totalitarian communism, you've got to say that World War I was also a disaster for Russia, because it facilitated the rise of the Bolsheviks. The Russian Revolution had two phases. In the first phase, called the February Revolution, because get this, it occurred in February, army mutinies and civil unrest forced the overthrow of the Romanov dynasty, which had been in power in Russia since, like, forever, to use a proper historian term. The monarchy was replaced by a provisional government, led eventually by Alexander Kerensky, who made the terrible decision to keep Russia in the war, which led to the October Revolution, so-called because it happened in October, in which Vladimir Lenin and his Bolsheviks took over, famously promising the Russian people peace, bread, and land, to which the Russian people responded, hey, you just named three of our favorite things. Lenin's first big achievement was signing a separate peace with Germany and getting Russia out of the war, which was helpful to him since he needed to fight a civil war that wouldn't end until 1922.