When most people think about World War I, the Western Front is usually what they imagine. There, in Belgium and France, the war settled into a profoundly bloody and futile stalemate, with both sides attempting to bleed the other side dry. Generally speaking, the Eastern Front never settled into the pattern of trench warfare that characterized the Western Front. This is not to say, however, that the war was any less brutal. Massive clashes between armies, often with frightful casualties, were typical of the Eastern Front. One example was the Battle of Tannenberg, where German forces annihilated a massive Russian army in August of 1914. Unlike the Western Front, where such bloodletting was largely indecisive, and the war became largely one of attrition, the East saw several large and decisive battles as Russian thrusts into East Prussia and later into the Austro-Hungarian Empire were bloodily repulsed. What the two fronts did have in common was that the German military bore the brunt of the fighting for the Central Powers, just as it did in the West. Austria proved incapable of resisting Russian offensives without heavy German support, and of course the Germans almost singlehandedly were responsible for the defense of their frontier in East Prussia, mentioned above. By late 1916, however, Russia had sacrificed so heavily that it struggled to bear the continued war effort. The Bolshevik Revolution saw a Russian withdrawal from the conflict.