Facing the threats of Russian Civil War expansion into the Republic and communization in his own ranks, Pântea became a major contributor to the accelerated political process of union with Romania. In January 1918, he welcomed the Romanian Land Forces and General Ernest Broșteanu, who had a mandate to reinstate order, and who arrived in Chișinău alongside the French military envoy Henri Mathias Berthelot. There followed a common offensive against the Bolshevik insurgents, part of the larger Western intervention in the Civil War. In the end, the Bolsheviks retreated to Tighina, and the Russian Soviet government broke diplomatic contacts with Romania ("see Odessa Soviet Republic").