Monakhov continued to command the division in Operation Gallop during January and February. In late February the division joined the 1st Guards Army and fought in the Barvenkovo area. Withdrawn to the army reserve in May, the division then fought in battles for the Izyum bridgehead in mid-July. From August 1943, the division, with the 8th Guards Army and then the 12th Army, fought in the Donbass Strategic Offensive, the Zaporozhye Offensive, and the Battle of the Dnieper. Monakhov's division was decorated twice and on 4 November joined the 6th Army of the 3rd Ukrainian Front. His performance in these evaluated by his superior as demonstrating the ability "to remain calm in the most difficult conditions" and to "make the correct decisions, while also "correctly organizing combined arms cooperation." He became deputy commander of the 28th Guards Rifle Corps on 29 December 1943 and succeeded to command of it on 19 January 1944. During the Nikopol–Krivoi Rog Offensive, Monakhov was severely wounded around 13:00 on 12 February in a German air raid on the road southeast of Malo-Vorontsevka as the corps attacked Apostolovo. He died of his wounds on 17 February 1944 at an evacuation hospital in Dnipropetrovsk, where he was buried. Monakhov was recommended for the Order of Lenin but this was downgraded and instead he was posthumously awarded the Order of the Patriotic War, 1st class on 19 March for his leadership of the corps.