Soon after the German Invasion, Krasovsky was appointed commander of the 56th Army Aerial Detachment, in August 1941. He also commanded the Bryansk Front aerial units, and from November 1942 - the 17th Air Army, that participated in the Battle of Stalingrad. At 20 December that year, he was made a lieutenant general. From March 1943, Krasovsky headed the 2nd Air Army, an office he held until the war's end. His forces took part in the battles of Kursk, Eastern and Western Ukraine, Silesia and Berlin. On 4 February 1944, he was promoted to Colonel-General. On 29 May 1945, he was awarded the title Hero of the Soviet Union.