The last year of the Great War proved the most paradoxical, and remains even today the year least understood by historians. Germany finalized its victory over Russia in March 1918, by concluding a harsh peace with the Bolshevik successors to the tsar's regime with the Treaty of Brest Litovsk. That same month, the Germans began a drive for total victory along the Western Front that again brought them within a two-day march of Paris. Yet at no time in the war would success prove so deceptive, or so perilous. By November, the Germans had to request an armistice, and it seemed as though the Allies had won. But to the end, the Great War remained a war of attrition. To the end, attrition weakened both sides. The Allies, and particularly France, had good reasons to stop the war when they did. No one could be sure just how long support for the war would hold up anywhere, and leaders through Europe feared that the communist revolution preached by the new regime in Russia might overwhelm them all. As hard as the French tried to make it look like one, the Armistice signed in November 1918 was not quite a German surrender. The German army returned home in good order, greeted by an explanation of what had happened that would come to haunt all of Europe – that the German army had not been defeated, but had been “stabbed in the back” on the home front, by socialists and by Jews.