the Karteschewka-Prokhorovka road. Once there, they were to strike southeast to attack the Soviet positions at Prokhorovka from the flanks and rear. The 1st and 2nd SS Panzer divisions were to wait until 3rd SS Panzer Division attack had destabilised the Soviet positions at Prokhorovka; and once underway, the 1st SS Panzer Division was to attack the main Soviet defences dug in on the slopes southwest of Prokhorovka. To the division's right, the 2nd SS Panzer Division was to advance eastward, then turn southward away from Prokhorovka to roll up the Soviet lines opposing the III Panzer Corps' advance and force a gap. During the night of 11 July, Rotmistrov moved his 5th Guards Tank Army to an assembly area just behind Prokhorovka in preparation for a massive attack the following day. At 5:45 Leibstandarte headquarters started receiving reports of the sound of tank engines as the Soviets moved into their assembly areas. Soviet artillery and Katyusha regiments were redeployed in preparation for the counterattack. At around 08:00, a Soviet artillery barrage began. At 08:30, Rotmistrov radioed his tankers: "Steel, Steel, Steel!", the order to commence the attack. Down off the west slopes, before Prokhorovka, came the massed armour of five tank brigades from the Soviet 18th and 29th Tank Corps of the 5th Guards Tank Army. The Soviet tanks advanced down the corridor, carrying mounted infantrymen of the 9th Guards Airborne Division on the tanks. To the north and east, the 3rd SS Panzer Division was engaged by the Soviet 33rd Guards Rifle Corps. Tasked with flanking the Soviet defences around Prokhorovka, the unit first had to beat off a number of attacks before they could go over onto the offensive. Most of the division's tank losses occurred late in the afternoon as they advanced through mine fields against well-hidden Soviet anti-tank guns. Although the 3rd SS succeeded in reaching the Karteschewka-Prokhorovka road, their hold was tenuous and it cost the division half of its armour. The majority of German tank losses suffered at Prokhorovka occurred here. To the south, the Soviet 18th and 29th Tank Corps had been thrown back by the 1st SS Panzer Division. The 2nd SS Panzer Division also repelled attacks from the 2nd Tank Corps and the 2nd Guards Tank Corps. Luftwaffe local air superiority over the battlefield also contributed to the Soviet losses, partly due to the VVS being directed against the German