In most cases, the defense was led by the South Vietnamese. Local militia or ARVN forces, supported by the South Vietnamese National Police, usually drove the attackers out within two or three days, sometimes within hours; but heavy fighting continued several days longer in Kon Tum, Buôn Ma Thuột, Phan Thiết, Cần Thơ, and Bến Tre. The outcome in each instance was usually dictated by the ability of local commanders—some were outstanding, others were cowardly or incompetent. During this crucial crisis, however, no South Vietnamese unit broke or defected to the communists.