The world war between Germany and the Allied Powers of France, Russia, and Britain lasted from 1914 to 1918. When German submarines blockaded Britain and attacked neutral shipping in 1917, the United States declared war. The war was the most significant event of Wilhelm's reign. It ended in catastrophic defeat for Germany, and over 4.2 million Germans were killed. Wilhelm's role in launching the war is much debated. | The world war between Germany and the Allied Powers of France, Russia, and Britain lasted from 1914 to 1918. When German submarines blockaded Britain and attacked neutral shipping in 1917, the United States declared war. The war was the most significant event of Wilhelm's reign. It ended in catastrophic defeat for Germany, and over 4.2 million Germans were killed. Wilhelm's role in launching the war is much debated. |