In late May 1919, Szamuely travelled to Moscow by aeroplane to campaign for world revolution with Vladimir Lenin. As Szamuely progressed with the revolutionary tribunals, Kun became increasingly uneasy of him, and feared that he was gaining more power than the government. The Social Democrats, who were also members of the Revolutionary Governing Council, pushed for keeping Szamuely and Cserny in check. Therefore, the People's Commissar of Military Affairs at that time, Vilmos Böhm, ordered the dissolution of the paramilitaries and the tribunals at the end of April 1919. Szamuely did not obey, but continued the tribunals' activities in Szolnok in May, then in Abony. He planned to assassinate Böhm, but by August 1919, the Hungarian Soviet Republic had ended after Hungarian-Romanian war, and Szamuely was forced into exile.