II SS Panzer Corps
Though the German advance in the south was slower than planned, it was faster than the Soviets expected. On 9 July, the first German units reached the Psel River. The next day, the first German infantry crossed the river. Despite the deep defensive system and minefields, German tank losses remained lower than the Soviet's. At this point, Hoth turned the II SS Panzer Corps away from Oboyan to attack toward the northeast in the direction of Prokhorovka. The main concern of Manstein and Hausser was the inability of Army Detachment "Kempf" to advance and protect the eastern flank of the II SS Panzer Corps. On 11 July, Army Detachment "Kempf" finally achieved a breakthrough. In a surprise night attack, the 6th Panzer Division seized a bridge across the Donets. Once across, Breith made every effort to push troops and vehicles across the river for an advance on Prokhorovka from the south. A linkup with the II SS Panzer Corps would result with the Soviet 69th Army becoming encircled.