Nikolai Sergeyev (admiral)

Nikolai Dmitriyevich Sergeyev (Ukrainian: Микола Дмитрович Серге́ев; Russian: Никола́й Дми́триевич Серге́ев, October 5, 1909 – February 11, 1999) was a Fleet Admiral and Chief of staff of the Soviet Navy.

In 1932 he joined the Amur Military Flotilla in the Far East and served on and commanded river monitors.

During World War II Sergeyev first served on the Main Navy Staff planning amphibious operations and then commanded monitors with the Volga Flotilla before returning to the Main Navy Staff in 1943.

After the war Sergeyev continued to serve on the Main Navy Staff and took part in the Soviet nuclear testing programme near Novaya Zemlya.

He became head of the Main Operations Directorate in 1953 and Chief of Naval Staff in 1964, serving for 13 years (longer than anyone else) in that post.