Second Allied Tactical Air Force (2 ATAF) was a NATO military formation under Allied Air Forces Central Europe tasked with providing air support to NATO's Northern Army Group (NORTHAG). 2ATAF commanded all flying units based within its sector and all reinforcements flying into its sector, as well as ground based radar systems and stations, air defense units and the airfields in its sector. 2 ATAF was disbanded on 30 June 1993, its duties were taken over by Allied Air Forces Central Europe.