Some historians contend the goals of the North Koreans at the Pusan Perimeter were unattainable from the beginning. According to historian T. R. Fehrenbach, the Americans, who had been better equipped than the KPA, were easily able to defeat their opponents once they had the chance to form a continuous line. At the same time, the KPA did break through the perimeter at several points and were able to exploit their gains for a short time. Within a week, though, the momentum of the offensive had been slowed and the KPA could not keep up the strength of their attacks. Most of the front saw only probing actions for the remainder of the battle.