World War I

The First World War began as a diplomatic crisis between Austria-Hungary and Serbia, following the assassination of Archduke Franz Ferdinand in June 1914. It soon grew into a conflict that engaged all of the world's major powers. On one side was a group of nations known as the Central Powers, including Germany, Austria-Hungary, and the Ottoman Empire. They waged war against the Allied Powers, including France, Britain, Russia, Italy, and eventually the United States. New developments in moder…