As a result of the 2008 Russian military reforms, the units of the Russian Naval Aviation were reorganized into 13 new Naval Air Bases. Each new naval air base consists of an HQ, support units and one or more aviation groups/wings (the former air bases). In a second stage, the air bases were merged into territorially integrated structures. Only the 279th Regiment retained its status. The planned transfer of Naval Aviation assets (Su-24, Su-27, Tu-22M3, MiG-31) to the Air Force has been delayed due to their importance to the service, but was finally implemented by the end of 2011.