As with Napolean, Hitler, and after the reverses of the Gorlice-Tarnow battle in 1915, the Russias can and would trade space for time. Had the Germans not strengthened the forces in Alsace-Lorraine at the expense of the right wing, they might still have beaten France in 6 weeks. The Germans also sent 2 corps ( 4 divisions ) to the east that did not arrive in time for Tannenberg but reduced the right wing further.