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The thirteen causalities were lost in the aftermath of a carefully laid ambush executed by New People's Army guerrillas that saw a landmine explosion hitting a two vehicle convoy sent to reinforce a detachment of armed militiamen assigned to the Surigao Development Corporation (SUDECOR) near Barangay Pakwan also in Lanuza town which had earlier also been attacked by NPA insurgents.
The high cost exacted on the local military forces by the success of the "lure and ambush" tactics employed by the NPA, as evidenced by the recent ambuscade, has shaken the military leadership. As a consequence, reliable sources have revealed that the commanding officers of the 401st Brigade and the 58th Infantry Batallion of the Philippine Army which have operational jurisdiction over the province have been quietly relieved and replaced although nothing formal can be heard yet from the media or from the military high command.
Time and time again in the past, especially in the 1970's and 80's, the armed forces has lost many of their men to the classic NPA guerrilla stratagem whereby rebel forces harass an isolated military outpost and then launch the main attack on hapless troops trying to reinforce their beleaguered companions.