After the Second World War 1945 –
During the establishment of the newly formed History Section on March 1, 1945, not a single archival material existed for arranging the archives. The focus was on collecting the archival materials, primarily regarding the National Liberation Army and Partisan Detachments of Yugoslavia, then the enemy formations from 1941-194, which were mainly seized and found within military units or other institutions, and the military archives made until 1940.
On March 26, 1945, the Yugoslav Army General Staff ordered all HQs, units and rear military authorities to collect and send to the History Section the entire war archival materials and documentation which could be used for processing military war history. The collection of the archive material of the enemy and quisling units in the Second World War was conducted simultaneously with the collection of materials from the National Liberation Army and Partisan Detachments of Yugoslavia. The archives of the enemy formations from 1941-1945 were mainly seized and found within military units or other institutions.
After the Second World War, the Military Archives had several wagons of the collected archival materials and the focus was put on the arranging these materials. There was a lack of manpower and qualified personnel, so that the knowledge was acquired through practice and experiences of other archival institutions in Belgrade. Many part-time employees, mostly retired officers of the Yugoslav Royal Army were engaged in arranging the materials. In the first phase, the systematization and classification of the entire archival materials were conducted. The archival materials were divided into three groups: the archives of the Serbian Royal Army and Yugoslav Royal Army, the archives of the National Liberation Army and Partisan Detachments and the archives of the Occupying and Quisling Units in the Second World War.