 Luxembourg is covered by interceptors from Belgium, while Slovenia and Albania are covered by Italian and Greek aircraft.Since March 2004, when the Baltic States joined NATO, the 24/7 task of policing the airspace of the Baltic States was conducted on a three-month rotation from Lithuania's First Air Force Base in Zokniai/Šiauliai International Airport, near the northern city of Šiauliai, and starting 2014 at the Ämari Air Base in Harju County, Estonia.Starting with the Turkish deployment, rotations changed to a four-month basis.