After Germany invaded the Soviet Union, Aslanov commanded the regimental Motor Transport Battalion in the border battles and the
Battle of Kiev. In August 1941, he replaced the injured commander of a
tank battalion. In the fierce battles near
Shostka,
Bakhmach and
Pyriatyn, his tank commanders fought to the last tank, while Aslanov personally led his battalion in the attack. In one of these battles, Aslanov received two bullet wounds in his right leg and a severe shrapnel wound to the head, but despite these injuries, he continued to fight. When the battalion lost all of its tanks, he was appointed assistant commander of the 10th Motor Rifle Regiment for equipment on 25 August. In this role, he fought in the region of Pyriatyn,
Okhtyrka,
Bohodukhiv and
Kharkiv. With the surviving officers, Aslanov was placed in Southwestern Front reserve of command personnel in late 1941, and in January 1942 he was promoted to lieutenant colonel, placed at the disposal of the Commander of the Armored and Mechanized Forces in Moscow. Aslanov led the regiment, in the Soviet counteroffensive at Stalingrad, and was awarded the title
Hero of the Soviet Union on 22 December. For its performance, his regiment became the 41st Guards Tank Regiment on 26 December, while the corps became the 3rd Guards Mechanized Corps. The regiment was reorganized as the 35th Guards Tank Brigade on 20 April 1943, and Aslanov continued in command. Aslanov led the brigade in the Rostov offensive, the
Mius offensive, and the
Battle of the Dnieper during 1943. For his performance, Aslanov, by then a colonel, was awarded the
Order of Alexander Nevsky on 15 April and the
Order of the Red Banner on 14 November. In December, he was sent to the Academic Courses for the Improvement of Officers at the
Military Academy of the Armored and Mechanized Forces for further training. After completing the courses, Aslanov returned to command the 35th Guards Tank Brigade in April 1944, having promoted to major general on 13 March. Aslanov's brigade was pulled out of action that day, having lost fifty tanks in two days of fighting. On 27 January, Aslanov was posthumously awarded the
Order of the Patriotic War, 1st degree, for his leadership of the brigade. ==Awards and honors==