south of Caen, was the only panzer division close to the beaches. The division included 146 tanks and 50 assault guns, plus supporting infantry and artillery. At 02:00, Generalleutnant Wilhelm Richter, commander of the 716th Static Infantry Division, ordered 21st Panzer Division into position to counter-attack. However, as the division was part of the armored reserve, Feuchtinger was obliged to seek clearance from OKW before he could commit his formation. Feuchtinger did not receive orders until nearly 09:00, but in the meantime, on his own initiative he put together a battle group (including tanks) to fight the British forces east of the Orne. SS-Hitlerjugend began to deploy in the afternoon of 6 June, with its units undertaking defensive actions the following day. They also took part in the Battle for Caen (June–August 1944). On 7–8 and 17 June, members of the SS-Hitlerjugend shot and killed twenty Canadian prisoners of war in the Ardenne Abbey massacre. The Allies continued to make progress in the liberation of France, and on 4 August Hitler ordered a counter-offensive (Operation Lüttich) from Vire towards Avranches. The operation included LSSAH, Das Reich, 2nd, and 116th Panzer Divisions, with support from infantry and elements of the 17th SS Panzergrenadier Division Götz von Berlichingen under SS-Oberstgruppenführer Paul Hausser. These forces were to mount an offensive near Mortain and drive west through Avranches to the coast. The Allied forces were prepared for this offensive, and an air assault on the combined German units proved devastating. On 21 August, 50,000 German troops, including most of the LSSAH, were encircled by the Allies in the Falaise Pocket. Remnants of the LSSAH which escaped were withdrawn to Germany for refitting. Paris was liberated on 25 August, and the last of the German forces withdrew over the Seine by the end of August, ending the Normandy campaign. Battle for Germany Waffen-SS units that had survived the summer campaigns were withdrawn from the front line to refit. Two of them, the 9th SS and 10th SS Panzer Divisions, did so in the Arnhem region of Holland in early September 1944. Coincidentally, on 17 September, the Allies launched in the same area Operation Market Garden, a combined airborne and land operation designed to seize control of the lower Rhine. The 9th and 10th Panzers were among the units that repulsed the attack. In December 1944, Hitler launched the Ardennes Offensive, also known as the Battle