PVO divisions began to be formed in mid-1943, providing air defense for key locations in the rear as well as Moscow.
Postwar, most of the anti-aircraft divisions were disbanded, but the small number that remained lasted until the late 1950s, when they were replaced by Surface-to-air missile-equipped brigades and regiments.
Simultaneously, the Maxim batteries of the light regiments were disbanded and their personnel used to strengthen the DShK-armed companies, doubling the number of platoons, and maintenance units joined the divisions.
By 1960, when AA guns were superseded by Surface-to-air missiles (SAM), all of the PVO divisions had been disbanded or converted into other units.
[3] Postwar Red Army anti-aircraft artillery divisions were reequipped with the 14.5mm ZPU, and 57mm and 100mm AA guns.
In the fall of 1945, three new Red Army anti-aircraft artillery divisions were created in the Transbaikal-Amur Military District from new and existing units.
Two new divisions were formed in the Group of Soviet Occupation Forces in Germany and one in the Belorussian Military District in early 1949.