For the battle, the Ukrainians had concentrated six regular brigades and the Georgian Legion. According to Forbes on 1 February, Ukraine's army consisted of 20 active brigades, meaning that 30% of the Ukrainian active forces, or around 51,000 soldiers, were organized in the Donbas.[45][46] Additionally, units of the Territorial Defense force were active in the Donbas, along with an unknown number of civilian reserves, foreign volunteers, and partisans.