Soviet Border Troops, (Russian: Пограничные войска СССР, Pogranichnyye Voiska SSSR) were the militarized border guard of the Soviet Union, subordinated to its subsequently reorganized state security agency: first to Cheka/OGPU, then to NKVD/MGB and, finally, to KGB. Accordingly, they were known as NKVD Border Troops and KGB Border Troops (with Russian abbreviations - НКВД СССР/- КГБ СССР added on the end of official names). Unlike border guards of many other countries, Soviet Border Troops also included the maritime borderguarding units (i.e., a coast guard).