Lithuanian–Byelorussian Soviet Socialist Republic

The Lithuanian-Byelorussian Soviet Socialist Republic or Litbel was a failed communist government established to control their respective regions.

History
It was established on February 17th 1919 by the unification of the First Socialist Soviet Republic of Byelorussia and Lithuanian Soviet Socialist Republic. It would be disestablished after a Polish invasion in July 17th 1919.Despite that it was a de facto government barely hanging on. On April 19th the capital Vilnius was occupied by Polish forces. On August 8th Minsk was seized by Polish forces.