Ukrainian People's Army
The Ukrainian People's Army (), also known as the Ukrainian National Army (UNA) or as a derogatory term of Russian and Soviet historiography Petliurovtsi () was the army of the Ukrainian People's Republic (1917–1921). They were often quickly reorganized units of the former Imperial Russian Army or newly formed volunteer detachments that later joined the national armed forces. The army lacked a certain degree of uniformity, adequate leadership to keep discipline and morale. Unlike the Ukrainian Galician Army, the Ukrainian People's Army did not manage to evolve a solid organizational structure, and consisted mostly of volunteer units, not regulars.