Ukrainian Volunteer Corps (Добровольчий Український Корпус) is a volunteer military formation of the political movement Right Sector. The formation was established as Dnipro-2 battalion in April 2014 but the leadership of Right Sector refused to cooperate with Ministry of Internal Affairs after a member of Right Sector was killed by Internal Affairs officers. Ukrainian Volunteer Corps was established a month later. Several units followed Dmitry Yarosh and formed Ukrainian Volunteer Army in December 2015. The military formation had to been completely reformed and the new structure was created. Volunteer Corps is tolerated by law organizations but not legalized and cannot officially participate in ATO zone’s hostilities or even own firearms.