After the Japanese capitulation on August 15 1945, airbase Polonia fell into British hands later that year by parts of 26th Indian Division. Not long after followed by the 4th Brigade Indian Division and the 155th RAF Spitfire squadron coming to Medan. Airbase Polonia, later designated 11VB, was located about 2.5 km south of Medan and had 1700-meter runway.

The American long-range, single-seat fighter and fighter-bomber The North American Aviation P-51 Mustang is an American long-range, single-seat fighter and fighter-bomber used during World War II and the Korean War, among other conflicts. The fighter plane was the main asset of 122 Squadron. And is still flown by enthousiasts. North American P-51D-25-NA Mustang, Louisiana Kid (2016) Following combat experience the P-51D series introduced a "teardrop", or "bubble", canopy to rectify problems with poor visibility to the rear of the aircraft.