Battle of Verdun - 1916

Verdun, in Northeast France was the scene of World War I’s most emblematic battle. During the harsh winter, the German army prepared to launch an powerful offensive on the Meuse Valley. After 300 days of fighting and 300,000 dead, the fighting shifted away from the Verdun front. With so much firepower trained on the French lines, why did the German offensive fail? How did it color the course of this Great War?