By a decision of Emperor Nicholas II on 24 August 1918, the names of units and establishments within the District were changed to Petrograd Military District. This District was established as a part of the RKKA by order в„– 71 of the Highest Military Council of 6 September 1918. On 1 February 1924, by the order в„– 126 the Revolutionary Military Councils of the USSR the Petrograd military district was renamed the Leningrad Military District.