The corps headquarters was formed in December 1942 in Moscow Oblast as the 4th Fighter Aviation Corps (IAK). It initially included the 265th and 302nd Fighter Aviation Divisions (IAD) and smaller separate units. The 294th IAD joined the corps in accordance with a 13 December directive and the 265th IAD left it on 8 January 1943. The corps was commanded by Colonel
Ivan Podgorny (promoted to major general in March 1943 and lieutenant general in September 1944) for the entire war. Until mid-March 1943 the corps remained in the
Reserve of the Supreme High Command, then was transferred to the
2nd Air Army of the
Voronezh Front. The corps provided air cover for the ground troops of the front and airfields, escorted aircraft of the
1st Bomber Aviation Corps and the
1st Assault Aviation Corps during raids on the German forces, and flew reconnaissance missions. From the beginning of the
Battle of Kursk, the corps took an active part in the air battle in order to gain and maintain air supremacy. The corps was transferred to the
5th Air Army of the
Steppe Front (renamed
2nd Ukrainian Front on 20 October) on 27 July, and fought as part of the 5th Army for the rest of the war. During August and September it participated in the
Belgorod–Kharkov offensive and the
Battle of the Dnieper. In early 1944, it was involved in the
Kirovograd offensive and the
Korsun-Shevchenkovsky Offensive. During the
Uman–Botoșani offensive, the corps provided air cover for the troops of the front during their breakthrough of the German defenses, the crossing of the
Southern Bug,
Dniester, and
Prut and subsequent offensive operations. For its "demonstrated courage in the battles for the Fatherland with German invaders and the heroism of its personnel," the 4th IAK was redesignated as the 3rd
Guards IAK on 2 July 1944. Accordingly, the 294th and 302nd IADs became the 13th and 14th Guards IADs, respectively. During August, the corps fought in the
Second Jassy–Kishinev offensive and for distinguishing itself in the capture of
Iași received the name of the city as an honorific on 15 September 1944. Due to experience gained during the Battle of the Dnieper, Podgorny attempted to implement fighter tactics employing radar-assisted interception and free hunting tactics as more effective than the standard tactic of permanent patrols, which unnecessarily added more wear to aircraft engines and wasted fuel. However, the permanent patrols had to be retained in order to boost frontline morale as ground troops felt "more confident" being able to see their own fighters on the battlefield. The 3rd Guards IAK fought in the
Debrecen Offensive and the
Budapest offensive from October 1944 to February 1945, during which it covered the main forces of the
1st Cavalry Mechanized Group of the 2nd Ukrainian Front. The
6th Guards IAD transferred to the corps in October to become the corps' third division. During the German
Balaton offensive, the corps and the fighter units of the
17th Air Army provided air cover for the 3rd Ukrainian Front from German air raids. The corps ended the war in the
Vienna offensive in March and April and the
Prague offensive in May. Just before the start of the Prague Offensive, on 1 May the corps had a strength of 208 serviceable aircraft and 264 pilots. For its "exemplary fulfillment of command tasks" during the breakthrough of German defenses and the capture of
Komarno,
Nové Zámky,
Šurany,
Komjatice, and
Vráble, the corps was awarded the
Order of Suvorov, 2nd class on 17 May 1945. It was further decorated with the
Order of the Red Banner on 4 June 1945 for its role in the capture of
Jaroměřice,
Znojmo,
Hollabrunn, and
Stockerau. During the war, units of the corps flew more than 41,000 combat missions and was credited with destroying more than 2,000 aircraft. Several thousand personnel were decorated and 46 received the title
Hero of the Soviet Union. == Cold War ==