The USA fought against Germany, Austria-Hungary, and their allies in World War 1.
Russia, Austria-Hungary, and Germany fought on the Eastern Front
The Battle for Castle Itter was a major battle that was fought in Austria during World War 2. It was fought in the final days of the war and the only battle that the Germans and Americans fought together as allies.
The War of Jenkins' Ear was fought in Austria and Prussia. The Americans also fought the French is America.
Austria-Hungary fought in the Battle of Ginghames during World War One. This battle was between Austria-Hungary and Italy.
Italy was in the Triple Alliance and fought for the Allied Powers. The remaining two, Germany and Austria-Hungary, fought for the Central Powers.
The arch duke of austria-hungary was shot.
Germany, Austria-Hungary, Ottoman Empire
Germany, Austria-Hungary and the Ottoman Empire fought against Russia directly.
The Allies (France, Russia and the British Empire) fought the Central Powers (Germany, Austria-Hungary and Turkey).
The US fought Germany and Austria-Hungary in World War I.
It was fought in more than one country. Bosnia-herzegovina, Austria,Germany, France, and Belgium mostly