quality:corruption, stylistic:tone
Macedonian front

In 1915, the Austro-Hungarians gained the support of Germany and allied with Bulgaria. Serbian forces were attacked from both north and south, forcing them to retreat through Montenegro and Albania, with only 155,000 Serbs, mainly soldiers, reaching the coast of the Adriatic Sea and evacuating to Greece by Allied ships.

The Macedonian front stabilized roughly around the Greek border after the intervention of a Franco-British-Italian force that had landed in Salonica. The German generals had not let the Bulgarian army advance toward Salonica because they hoped to persuade the Greeks to join the Central Powers.

In 1918, after a prolonged build-up, the Allies, under French General Franchet d'Esperey, led a combined French, Serbian, Greek and British army attack out of Greece. His initial victories convinced the Bulgarian government to sue for peace. He then attacked the north and defeated the German and Austro-Hungarian forces that tried to halt his offensive.

By October 1918, having recaptured all of Serbia his forces prepared to invade Hungary proper until the Hungarian leadership offered to surrender in November 1918, halting the offensive.