Закавказский военный округ
The Transcaucasian Military District, a military district of the Soviet Armed Forces, traces its history to May 1921 and the incorporation of Armenia, Azerbaijan, and Georgia into the Soviet Union. It was disbanded by being redesignated as a Group of Forces in the early 1990s after the Soviet Union collapse. The military district formed as a basis of the modern day armed forces of Armenia, Azerbaijan, and Georgia.