Kaliningrad Special Region
The Kaliningrad Special Region (Russian: Калининградский особый район; also known as the Kaliningrad Defensive Area; Калининградский оборонительный район, КОР) was a military district of the Russian Armed Forces from 1997 to 2010. It was tasked with the defense of the Kaliningrad Oblast and protection of national interests in the southern Baltic.
Source: Wikipedia — Kaliningrad Special Region (CC BY-SA 4.0)