War on Austria-Hungary, in the Balkans and Italy. Allies establish the Macedonian Front but do not advance; the Central Powers occupy Romania. Allies bring Greece to its side. Austrian and German troops breach the Italian front and stop just short of Venice but next Austrian assault at the Piave fails. Allies breach the Macedonian Front, Bulgaria capitulates. Czechoslovakia and South Slavs declare independence, Italy launches counter-offensive Battle of Vittorio Veneto; Austria-Hungary capitulates and dissolves.