Ukrainian volunteer battalions
Ukrainian volunteer battalions (Ukrainian: Добровольчі батальйони, romanized: Dobrovolchi bataliony, more formally Добровольчі військові формування України, Dobrovolchi viiskovi formuvannia Ukrainy, 'Volunteer military formations of Ukraine', or abbreviated Добробати, Dobrobaty) were militias and paramilitary formations mobilized as a response to the perceived state of weakness and unwillingness of the regular Armed Forces to counter rising separatism in spring 2014. They trace their origins to the "Maidan Self-Defense" militias formed during the Euromaidan in 2013 to confront Yanukovych Government and the pro-Russian Anti-Maidan movement, and many of its first volunteers were activists or sympathizers of the Euromaidan movement.
Source: Wikipedia — Ukrainian volunteer battalions (CC BY-SA 4.0)