(2nd Hungarian). These were formed under the authority of the Hungarian defence minister, at the request of Himmler. One regiment from the Hungarian Army was ordered to join, but they mostly consisted of Hungarian and Romanian volunteers. The SS Division Langemarck was formed next in October 1944, from Flemish volunteers added to the 6th SS Volunteer Sturmbrigade Langemarck, but again it was nothing more than a large brigade. The 5th SS Volunteer Sturmbrigade Wallonien was also upgraded to the SS Division Wallonien, but it too was never more than a large brigade. Plans to convert the Kaminski Brigade into the 29th Waffen Grenadier Division of the SS RONA (1st Russian) were dropped after the execution of their commander, Bronislav Kaminski; instead the Waffen Grenadier Brigade of SS (Italian no. 1) became the 29th Waffen Grenadier Division of the SS (1st Italian). The 30th Waffen Grenadier Division of the SS (2nd Russian) was formed from the Schutzmannschaft-Brigade Siegling. The final new division of late 1944 was the 31st SS Volunteer Grenadier Division, formed from Hungarians and conscripted Volksdeutsche. In November 1944 the 1st Cossack Division, originally mustered by the German Army in 1943, was taken over by the Waffen-SS. The SS Führungshauptamt reorganised the division and used further Cossack combat units from the army and the Ordnungspolizei to form a 2nd Cossack Division. Both divisions were placed under the command of the XV SS Cossack Cavalry Corps on 1 February 1945. With the transfer of the Volunteer Cossack-Stamm-Regiment 5 from the Freiwilligen-Stamm-Division on the same day the takeover of the Cossack units by the Waffen-SS was complete. Korsun-Cherkassy Pocket The Korsun-Cherkassy Pocket was formed in January 1944 when units of the 8th Army withdrew to the Panther-Wotan Line, a defensive position along the Dnieper River in Ukraine. Two army corps were left holding a salient into the Soviet lines extending some . The Red Army's 1st and 2nd Ukrainian Fronts encircled the pocket. Trapped in the pocket were a total of six German divisions, including the 5 SS Wiking, with the attached 5th SS Volunteer Sturmbrigade Wallonien, and the Estonian SS Battalion Narwa. The Germans broke out in co-ordination with other German forces from the outside, including the 1 SS . Roughly two out of every three encircled men successfully escaped the pocket. Raid on Drvar The Raid on Drvar, codenamed Operation Rösselsprung, was an attack by the Waffen-SS and Luftwaffe