K-1 Air Base, or Kaywan, is a former Iraqi Air Force base and military base in the Kirkuk Governorate of Iraq. It was captured by Coalition forces during Operation Iraqi Freedom in 2003, later served as the headquarters of the 12th Division of the Iraqi Army. In 2014 it was taken over by the Kurdish Peshmerga. On October 16, 2017, the base was taken back by Iraqi special forces during the Battle of Kirkuk.