When the Kingdom of Yugoslavia was divided into banovinas in 1929, a separate administrative-territorial unit called the "Belgrade City Administration" was formed, encompassing the City of Belgrade with surrounding area, including Zemun and Pančevo. This territory was entirely surrounded by Danube Banovina, which had administrative seat in Novi Sad. Following Axis invasion, occupation and partition of Yugoslavia in 1941, the Belgrade City Administration continued to exist as an administrative-territorial unit of the Territory of the Military Commander in Serbia until the end of 1941, when Serbia was divided into districts in a new territorial organization.