Undertaking further studies and naval courses, Panteleyev specialised in navigation and served on a number of ships of the Black Sea Fleet, and then as a staff officer of the Northern Military Flotilla.

After command of submarine brigades in the Black Sea, Panteleyev was appointed chief of staff of the Baltic Fleet, in anticipation of future hostilities.

Success in this area was followed with an appointment to take charge of the Volga Military Flotilla [ru] and establish a safe supply of fuel for the armies operating in the region.

Having achieved this, he then was appointed commander of the White Sea military flotilla [ru], with the important task of defending and keeping open the approaches to the Northern ports.

He successfully arranged the escort and defence of the Arctic convoys, and made airfields and support available to British bombers carrying out attacks on the Tirpitz.

One of his works was Anatoly Lunacharsky's 1918 film Congestion (Russian: Уплотнение), with Aleksandr being awarded the title of Hero of Labour [ru].

In March 1921 he took part in the suppression of the Kronstadt rebellion, commanding a detachment of skiers made up of Komsomol members who carried out reconnaissance of the approaches to Kotlin Island, marking the way for the advancing troops.

[1] Panteleyev then took the course for navigators, followed by practical experience as assistant captain on the Soviet sailing merchant ship Lauristin during a voyage to Estonia in summer 1921.

[1] From December 1923 to February 1925 he studied the Higher Special Courses of the naval command staff, which included practical experience with a voyage aboard the Vorovskiy, which ended in Vladivostok on 20 November 1924, having sailed through the North Sea, past Gibraltar, through the Suez Canal, the Red Sea, the Indian Ocean, and the Strait of Malacca, visiting many of the local ports.

[2] In summer 1938 he was transferred to the Navy Commissariat and from August 1938 to October 1939 was member, and then deputy chairman of the State Commission for the Acceptance of Ships.

[1] In October 1939 Panteleyev became acting chief of staff of the Baltic Fleet, and in June 1940 was confirmed in post, holding this position until 29 August 1941.

During the Soviet-Finnish War the Baltic Fleet deployed submarines and patrol ships in the Gulf of Finland, while carrying out air reconnaissance and providing supporting fire against fort artillery.

[1] The Soviets were unable to suppress the Finnish guns and had difficulty in firing on coastal targets because of a lack of spotters to observe the fall of shots.

[1] Promoted to rear admiral on 4 June 1940 Panteleyev was one of the officers based at the fleet headquarters at Tallinn as the possibility of war with Nazi Germany became ever greater.

He was tasked with clearing the Volga between Astrakhan and Kuibyshev of German mines, and of protecting vessels, especially those transporting fuel, from air attacks.

Two more brigades of armed vessels protected convoys from attack, while sailors and the local population were mobilised to watch for enemy minelaying attempts.

Eventually more than 8,000 vessels were involved on the waterway, delivering over 7 million tons of fuel, for which the flotilla was praised by General Vasily Chuikov, commander of the 62nd Army.

[1] In December 1943 Panteleyev was once more appointed Assistant Chief of the Main Naval Staff, and on 29 January 1944, two days after the lifting of the siege of Leningrad, he was promoted to vice admiral.

Panteleyev often took personal charge of operations; one in particular involved conveying two large icebreakers, Severniy Veter and Stalin from Eastern Arctic waters to Arkhangelsk, where they were needed to keep the approaches to the port open during the winter freeze.

With sonar detecting enemy vessels in the vicinity, Panteleyev chose to avoid the usual route, bypassing the narrows and straits where his ships would be particularly vulnerable.

[1] In 1944, Panteleyev, and the commander of the Northern Fleet's Air Force, became jointly responsible for providing support for attempts by British aircraft to sink the German battleship Tirpitz.

Therefore, it was decided that, in what was designated Operation Paravane, the British bombers would instead fly to airfields in the north of the Soviet Union following their raids, refuel and if necessary rearm, and then, if the Tirpitz was still afloat, attempt to bomb her again on their return to Britain.

[1][2][7][a] In March 1945 he was appointed commander of the White Sea naval defence area, holding the position until after the war, when in July 1946 he became Chief of the Combat Training Directorate.

[1] He remained interested in strategic questions, contributing an article to the 1961 edition of the military journal Voyennaya Mysl on the subject of submarine transports and tankers.