Ministry of the Maritime Fleet (Soviet Union) 1922 and was collapsed in 1991. But Minforflot has more short history. Until 25 May 1939, functions of the Ministry of Maritime Fleet USSR were carried out by the People's Commissariat of Water Transport of the USSR, which was responsible for both maritime and river fleets of the USSR. The structure of the People's Commissariat of Maritime Fleet USSR as a separate people's commissariat was confirmed by a decree of the Council of Ministers USSR on 25 May 1939. On 15 March 1946, the People's Commissariat of Maritime Fleet USSR was changed to the Ministry of Maritime Fleet USSR by
Treaty on the Creation of the USSR Treaty on the Creation of the USSR The Treaty on the Creation of the USSR officially created the Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union. It "de jure" legalised a union of several Soviet republics that had existed since 1919 and created a new centralised federal government (Congress of Soviets of the Soviet Union and Central Executive Committee of the Soviet Union (TsIK) were the legislative while Council of People's Commissars was the executive) where key functions were centralised in Moscow. The Treaty along with the Declaration of the Creation of the USSR was approved