 The VV units were stationed on military bases throughout the country, including central Kiev.The Internal Troops had an aviation brigade, initially formed from the 51st Separate Helicopter Guard Regiment (Oleksandriia, Kirovohrad Oblast) and the 31st Special Helicopter Battle Squadron (Bila Tserkva).In 2000 the 51st Separate Helicopter Brigade was reinforced by an aviation squadron from the Yaguar special-operations unit, obtaining an additional airfield in Kalynivka, Vinnytsia Oblast.