The Zemun airbases originally built in 1927 were an important geostrategic objective in the Axis invasion of April 1941. Following the surrender of Yugoslavia that same month, Zemun, along with the rest of Syrmia, was given to the Independent State of Croatia. The city was taken from Axis control in 1944, and since then, it is part of Serbian region known as Central Serbia. The city is now home of the Air force command building, a monumental edifice, situated at 12 Аvijatičarski Square in Zemun, Belgrade.