Austria-Hungary - was a constitutional union of the Empire of Austria and the Kingdom of Hungary. It was founded in 1867 with 700,000 square kilometres.
Allied powers - The Allies included Britain, France, Russia, Italy and the United States. These countries fought against the Central Powers which included
Central powers - Germany, Austria-Hungary, Ottoman Empire and Bulgaria. and Austria-Hungary,
Central powers - Germany, Austria-Hungary, Ottoman Empire and Bulgaria. and Austria-Hungary,
Why they thought this was the war to end all war, the introduction of new weapons such as poisonous gases, U-Boats, bombs, tanks, trench warfare, since the war included nearly all of the major countries in the world made the people of that time believe that there was no way future generations could make the same mistake after knowing the horrors of WWI.