Who developed the Schlieffen Plan during World War I?

The Schlieffen Plan was developed by Alfred von Schlieffen, a German military strategist. This plan outlined Germany's strategy for a two-front war against France and Russia. The essence of the plan was to quickly defeat France by invading through Belgium in order to prevent a prolonged conflict on both fronts. Schlieffen believed that if Germany could eliminate France quickly, it would then be able to focus its resources on defeating Russia. This military strategy was critical at the start of World War I and had significant implications for the conflict's early stages.

The other individuals mentioned had different roles during the war. Sir Douglas Haig was a British commander known for leading the British Expeditionary Force on the Western Front, while Arthur Currie played a pivotal role in the Canadian Corps and is recognized for his leadership in battles like Vimy Ridge. Billy Bishop was a notable Canadian flying ace credited with numerous aerial victories. Each of these figures contributed to the war effort in their unique ways, but none was responsible for the development of the Schlieffen Plan.