Provisional Priamurye Government
The Provisional Priamurye Government or Provisional Priamur Government (Russian: Приамурский земский край) existed in the region of Priamurye of the Russian Far East between May 27, 1921 and June 16, 1923. It was the last Russian State enclave during the Russian Civil War.
Source: Wikipedia — Provisional Priamurye Government (CC BY-SA 4.0)