On 21 March 1942, German forces under the command of General
Walther von Seydlitz-Kurzbach attempted to manoeuvre through the "Ramushevo corridor". Soviet resistance on the Lovat River delayed II Corps' attack until April 14. Over the next several weeks, this corridor was widened. A
battle group was able to break the siege on 22 April, but the fighting had taken a heavy toll. Out of the approximately 100,000 men originally in the pocket, there were 3,335 lost and over 10,000 wounded. By the time that ground communications with Kholm and Demyansk were regained in May 1942, Luftflotte 1 had flown 14,455 air transport sorties into the pockets. A total of 24,303 tons of supplies and equipment, as well as 15,446 replacements, were flown into the pockets and 22,093 wounded were flown out. The cost to the Luftwaffe was significant, with the loss of 265 aircraft, including 106 Junkers Ju 52, 17
Heinkel He 111 and two
Junkers Ju 86 aircraft. In addition, 387 airmen were lost.
Richard Overy argues that the Demyansk airlift was a
Pyrrhic victory, citing the loss of over 200 aircraft and their crew "when annual production of transports was running at only 500; and all to save 90,000 German soldiers, 64,000 of whom were either killed, wounded or too sick for service" by the airlift's end. Fighting in the area continued until 28 February 1943. The Soviet forces did not retake Demyansk until 1 March 1943, with the organized withdrawal of the German troops. == Effect on future operations ==