Why was quickly defeating France a key element of Gemany military strategy before world war 1?

Quickly defeating France was a key element of Germany's military strategy before World War I primarily due to the fear of a two-front war. The Schlieffen Plan aimed for a rapid victory over France to avoid prolonged conflict, allowing Germany to then redirect its forces to the east against Russia. This strategy hinged on swift movement and decisive action, as Germany's military planners believed that a quick defeat of France would prevent British intervention and secure Germany's dominance in Europe.