In the end, the year brought conclusive victories to neither side. The
Allies were shaken and exhausted, and Russia's imminent departure from
the war meant the end of the eastern front. Nonetheless, America's mobilization
of its vast strength and its commitment to send a massive army to
Europe rebalanced the scales. Moreover, the war against the U-boat had
been contained, albeit not completely defeated. The Allies still seemed the
stronger side.
But Great Britain and France had to hold on in the face of a final German
offensive. Victory in the east offered Germany the opening to concentrate
the bulk of its armies in France. Driven close to the limit of human and
material resources, the German leaders could still spend them on a final
attack in the west.