The aggrieved cities prepared for war with Rome, and might have defeated Romulus had they been fully united. But impatient with the preparations of the Sabines, the Latin towns of Caenina, Crustumerium, and Antemnae took action without their allies. Caenina was the first to attack; its army was swiftly put to flight, and the town taken. After personally defeating and slaying the prince of Caenina in single combat, Romulus stripped him of his armour, becoming the first to claim the spolia opima, and vowed a temple to Jupiter Feretrius. Antemnae and Crustumerium were conquered in turn. Some of their people, chiefly the families of the abducted women, were allowed to settle at Rome.