The 15th Panzer Grenadier Division managed to join the other German formations in the east of the island. Patton was ordered on 18 July to push troops north through Petralia on Route 120, the next east–west lateral, and then to cut the northern coast road. After that, he would mop up the west of the island. Bradley's II Corps were given the task of making the northward move, while the Provisional Corps was tasked with the mopping up operation. Alexander issued further orders to Patton to develop an eastward threat along the coast road once he had cut it. He was also directed to capture Palermo as quickly as possible as the main supply base for further eastward commitment north of Mount Etna. On 21 July, the Seventh Army's Provisional Corps overran the Italian battlegroup "Raggruppamento Schreiber" (under General Ottorino Schreiber), covering the withdrawal of the 15th "Panzer Panzergrenadier "Division, but Patton lost 300 men killed and wounded in the process. On 22 July, the Provisional Corps entered Palermo, and the next day the 45th Division cut the north coast road.