 The NPA was finally able to regain weaponry on December 29, 1970, when Philippine Military Academy instructor Lt. Victor Corpus defected to the CPP-NPA and led a raid on the PMA armory, timing the raid when most cadets were out on Christmas vacation and the PMA's senior officers including its Superintendent, General Ugalde had left the camp to meet President Ferdinand Marcos upon his scheduled arrival in neareby Baguio City.Corpus, who was PMA's designated officer of the day (OOD), guided the NPA raiding team which managed to escape with Browning Automatic Rifles, carbines, machineguns, and various other weapons and ammunition.According to now retired Brig.