Who united Germany during world war 1?

During World War I, Germany was not united by a single leader or political figure, as the country had already been unified in 1871 under Otto Von Bismarck. However, the war was led by Kaiser Wilhelm II, who was the Emperor of Germany at the time. The German Empire was a coalition of various states and regions, and the war effort was managed by military leaders rather than a unifying political force. The social and political dynamics during the war ultimately contributed to Germany's eventual disunity and the collapse of the empire.