Military Revolutionary Committee
The Military Revolutionary Committee (Milrevcom; Russian: Военно-революционный комитет, Voyenno-revolyutsionny komitet) was the name for military organs created by the Bolsheviks under the soviets in preparation for the October Revolution (October 1917 – March 1918). The committees were powerful directing bodies of revolt, installing and securing the Soviet power.
Source: Wikipedia — Military Revolutionary Committee (CC BY-SA 4.0)