The Republicans were able to trap the Nationalist garrison in Villafranca del Castillo, forcing General Varela to send the 5th Brigade of Navarre to relieve the pressure. The arrival of the Navarrese tipped the balance in favor of the Nationalists as the Republicans were forced from their positions and fled back across the Guadarrama River. A Nationalist attempt to recapture Villanueva del Pardillo on July 11 failed.