The was a fleet of the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, Potsdam Declaration, when it was dissolved followin ...

established during

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

Structure

Commanders

Commander in chief Chief of staff

Bibliography

*''The Maru Special series'', (Japan) *''Ships of the World series'', , (Japan) {{DEFAULTSORT:1st Mobile Fleet Fleets of the Imperial Japanese Navy Units of the Imperial Japanese Navy Air Service Military units and formations established in 1943 Military units and formations disestablished in 1944