Ukrainian People's Army
The Ukrainian People's Army (Ukrainian: Армія Української Народної Республіки, romanized: Armiia Ukrainskoi Narodnoi Respubliky), also known as the Ukrainian National Army (UNA) or by the derogatory term Petliurivtsi (Ukrainian: Петлюрівці, lit. '"Petliura's people"'), was the army of the Ukrainian People's Republic (1917–1921). They were often quickly reorganized and Ukrainized units of the former Imperial Russian Army and newly formed volunteer detachments that later joined the national armed forces.