Complex sentence: On 12 July the II SS-Panzer corps had 15 Tiger tanks, with ten of those to the north of the Psel river with "Totenkopf", four with "Leibstandarte", and "Das Reich" had just one.
Split into simpler sentences: On 12 July the II SS-Panzer Corps had 15 Tiger tanks. Ten of those were to the north of the Psel river with "Totenkopf", four were with "Leibstandarte", and "Das Reich" had just one.