 Administratively, the Ukrainian SSR was divided into three Soviet military districts (the Carpathian Military District, Kiev Military District, and Odesa Military District).Three Soviet air commands and most of the Black Sea Fleet naval bases were located on the coast of Ukraine.When the collapse of the Soviet Union took place in 1991 (see Novo-Ogaryovo process), the newly-independent state of Ukraine inherited one of the most powerful force groupings in Europe.