シュリーフェン・プラン
German military strategists had to adapt to the new strategic situation and developed the Schlieffen Plan. A series of military operations, that were to counteract being surrounded and, if exacted ruthlessly, will lead to victory. Under the Schlieffen Plan, German forces would invade France via Belgium, Luxembourg, and the Netherlands (the idea to go through the Netherlands was abandoned because of its neutrality), quickly capturing Paris and forcing France to sue for peace. The Germans would then turn their attention to the East before the Russian army could mobilize its massive forces. The Germans failed to achieve the plan's objectives.