[1] In the ranks of the 19th Fighter Aviation Regiment from 17 September 1939, to 8 October 1939, he participated in the 1939 Soviet invasion of Poland, and from November 1939 to March 1940, he flew 66 sorties during the Winter War.

While flying a MiG-3, he scored his first aerial victory on 3 October 1941 over Lake Ladoga, while repelling a Luftwaffe raid on ships delivering cargo to Leningrad.

From October 1941, he was assigned as a military commissar of the squadron of the 26th Air Defense Fighter Aviation Regiment at the Leningrad Front.

In 1942, he flew 70 escort sorties to ensure the safety of transport aircraft flights to besieged Leningrad, without losing any of them to enemy fighters, while flying a I-16.

From May 1942 to June 1943, Lobov was the commander of the escort of Second Secretary of the Communist Party of the Soviet Union Andrei Zhdanov's weekly in and out flights from Leningrad.

From November 1942, he fought as deputy commander for political affairs of the 275th Fighter Aviation Division, flying Yak-1 and La-5.

In August 1944, Lobov organized and personally led a series of 4 assault air strikes against the largest enemy airfields in East Prussia.

Lobov scored his 10th and last aerial victory of the war, when he shot down a Heinkel He 111 bomber over the Czechoslovak city of Mělník.

In 1946, he completed a six-month advanced training course for the commanders of aviation divisions at the Air Force Academy.

After the outbreak of the Korean War in June 1950, the 303rd FAD was transferred to the Soviet Far East, and later to airfields in northern China.

Lobov flew 15 sorties during the war and shot down four USAF F-80 Shooting Stars in dogfights, while flying the Mikoyan-Gurevich MiG-15.

On 10 October 1951, Lobov was awarded the title of Hero of the Soviet Union for his courage and bravery in performing his military duty, while taking into account his merits in the Great Patriotic War.