Kozjak is a mountain situated on the border between the Republic of Macedonia

Republic of Macedonia

Macedonia , officially the Republic of Macedonia , is a country located in the central Balkan peninsula in Southeast Europe. It is one of the successor states of the former Yugoslavia, from which it declared independence in 1991...

 and Serbia

Serbia

Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

. It is situated north-east from Kumanovo

Kumanovo

Kumanovo is a city in the Republic of Macedonia and is the seat of Kumanovo Municipality which is the largest municipality in the country. Municipal institutions include a city council, mayor and other administrative bodies.-Name:...

. The tallest peak of Kozjak is Virovi at 1284 meters.

During World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 Kozjak was occupied by Draža Mihajlović's Chetniks

Chetniks

Chetniks, or the Chetnik movement , were Serbian nationalist and royalist paramilitary organizations from the first half of the 20th century. The Chetniks were formed as a Serbian resistance against the Ottoman Empire in 1904, and participated in the Balkan Wars, World War I, and World War II...

, and was a ground of severe battles between them and the Macedonian National Liberation Army.

Kozjak is famous for the Prohor Pčinjski monastery

Prohor Pcinjski

Prohor Pčinjski is an 11th-century Serbian Orthodox monastery in the deep south of Serbia, located in village Klenike, Pčinja District near the border with Macedonia...

 in which the first session of the ASNOM was held on 2 August 1944.