The Army of the future will reengineer itself to carry out its primary function of external defense. Thus the PA will be restructured by reducing the eight (8) Infantry Divisions to three (3) as Rapid Deployment Forces (RDF); organizing eight (8) Infantry Brigades (Separate) as forward deployed forces and which will also serves as the nuclei of eight (8) Reserve divisions; merging the Special Forces Regiment, the First Scout Ranger Regiment and PsyOps Group into a Special Operations Command; reorganizing the Light Armor Brigade into an Armor Brigade; organizing an Artillery Regiment, an Aviation Battalion, an Air Defense Artillery Battalion; a Reserve Command and a Training and Doctrines Command. The five (5) Engineer Brigades will be reduced to three (3), and PA Service Units will be reduced from six (6) to five (5). The staff of Headquarters PA will be maintained at nine (9) coordinating staffs, and the number of special, technical, and personal staff will be reduced from nineteen (19) to twelve (12). The reorganization will be undertaken over a period of five (5) years. Significantly, the restructuring will result in the reduction of about 27% of the PA troop strength from the present level in ten (10) years.  The Separate Brigades will be in Abra, Isabela, Ft Bonifacio, Camarines Norte, Samar, Butuan, Zamboanga Del Sur, and Maguindanao.