The Multiple Kill Vehicle (MKV) was a planned US kinetic energy-based warhead that was designed to intercept and destroy multiple ballistic missiles, including possible decoy targets. During an actual hostile ballistic missile attack, the carrier vehicle with its cargo of small kill vehicles would have maneuvered into the path of an enemy missile. Using tracking data from the Ballistic Missile Defense System and its own seeker, the carrier vehicle would have dispensed and guided the kill vehicles to destroy any warheads or countermeasures. In April 2009, the Pentagon's budget was announced to be reshaped, effectively terminating the MKV program.