German Emperor Wilhelm II ruled from 1888 until the end of World War I in 1918. He was the last emperor of the German Empire and known for his militaristic and nationalistic policies. His reign saw significant industrial growth and the expansion of the German navy, which contributed to rising tensions in Europe. Wilhelm II was born on January 27, 1859, and was the grandson of Queen Victoria of the United Kingdom. His leadership style was often characterized by impulsiveness and a desire for personal power, which ultimately led to his abdication and exile following Germany's defeat in the war.