Expansion of Macedonia under Philip II
The Third Sacred War (often just called 'the' Sacred War) broke out in 356 BC, and would present Philip with his first real opportunity to expand his influence into the affairs of central and southern Greece. The war was ostensibly caused by the refusal of the Phocian Confederation to pay a fine imposed on them in 357 BC by the Amphictyonic League, a pan-Greek religious organisation which governed the most sacred site in Ancient Greece, the Temple of Apollo at Delphi. Behind the religious element, there probably lay a display of "realpolitik" in bringing charges against the Phocians, instigated by the Thebans. At this time, Thebes controlled a majority of the votes in the council, and at the autumn meeting in 357 BC, the Thebans were able to have both the Phocians (for the cultivation of the sacred land) and the Spartans (for occupying Thebes some 25 years previously) denounced and fined. Since the fines for both parties were "unjustifiably harsh", the Thebans probably expected neither party to pay, and thus to be able to declare a "sacred war" on either.
Ottoman Serbia
The Great War between Ottomans and the Holy League took place from 1683 to 1699. The Holy League was created with the sponsorship of the Pope and including Austria, Poland and Venice. These three powers incited the Serbs to rebel against the Ottoman authorities, and soon uprisings and guerrilla warfare spread throughout the western Balkans, ranging from Montenegro and the Dalmatian coast to the Danube basin and Old Serbia (Macedonia, Raška, Kosovo and Metohija). However, when the Austrians started to pull out of Serbia, they invited the Serbian people to come north with them to the Austrian territories. Having to choose between Ottoman reprisal and living in a Christian state, Serbs abandoned their homesteads and headed north led by patriarch Arsenije Čarnojević.