Kennedy’s National Security Adviser, McGeorge Bundy, phoned CIA deputy director General Charles P. Cabell to say that “the dawn air strikes the following morning should not be launched until planes can conduct them from a strip within the beachhead.”[46] Since no such opportunity came, this order in effect canceled the air strikes. Castro’s army surrounded the invading force in the following days. The exile brigade surrendered on April 19, 1961. More than one thousand members were taken prisoner.[47]