World War 1 which is also known as the Great War was a global conflict that lasted 4 years and involved many nations like Great Britain, France, Italy, and Russia. The war began on July 28th, 1914 when Austria-Hungary declared war on Serbia, escalating to alliances and rivalries which later caused the United States and Japan to join the war, making it one of the deadliest wars in history. There is a lot of debate on who started World War 1. Many people believe that the assassination of Franz Ferdinand from Austria-Hungary was the cause of the start of the war. Austria Hungary believed Serbia to be responsible and declared war on them, making Germany the cause of the war. You can also consider that Germany did not cause the war because of the