[2] She was the granddaughter of Nikola Mihailović, who was mentioned in the writings of the poet Sima Milutinović Sarajlija and served as an ally to the revolutionary leader Karađorđe.

It traced its origins to two brothers, Damitrije and Gligorije, who had defended the Čokešina Monastery from the Turks during the Serbian Revolution.

The family received its surname from Nedić's great-grandmother Neda, who was a member of the Vasojevići tribe of Montenegro.

He began his military service in 1901, and participated in both Balkan Wars,[2] during which he was in the communications section of the Supreme Command and later adjutant to the Chief of the General Staff.

[5] During the interwar period, Nedić was the Yugoslav military attaché in Bulgaria, France and Italy, before being appointed as the General Officer Commanding the Air Force.

[5] On 17 September 1938, Nedić approved a Yugoslav war plan to address a potential attack from the north following Germany's annexation of Austria (the Anschluss).