The Philippine Army felt the need to re-organize its reserve units in the National Capital Region when the 9th Infantry Division was deactivated and the newly created regular infantry division took its numerical designation. On 16 June 2006, pursuant to the directives of the Commanding General of the Philippine Army, the Army Adjutant General published General Orders number 290. The order tasked the Philippine Army Reserve Command to activate a Reserve Infantry Division to fill in the vacant post of the former 9ID. Finally on 20 July 2006, with further consultation from his staff, Brigadier General Emmanuel Cayton AFP, then Commander; Army Reserve Command transferred operational and administrative control of the 15th Infantry Division under the NCRRCDG pursuant to General Orders Nr. 233 and Colonel Marcelo B Javier Jr INF RES PA was installed as its first commanding officer. The 15th Infantry Division, then was composed of line task units re-organized from the deactivated 9th Infantry Division PA. Additional units were later added as the division grew to full strength. The Commission on Appointments, confirms the promotion of Colonel Javier Jr to brigadier general on 21 September 2012. On 3 December 2012, Colonel Javier Jr was sworn in as a brigadier general by President Benigno S. Aquino III, together with other newly promoted generals of the AFP at the Rizal Hall of the Malacañan Palace. The division, since its activation, has performed countless Civil-Military Operations, Search and Rescue Operations and directly assist then AFP National Capital Regional Command and now the AFP Joint Task Force-National Capital Region in fulfilling its mandate of ensuring peace and order within the National Capital Region.
Mission
Base for expansion of the Regular Force in the event of war, invasion or rebellion within its AOP.
Assist the Government in Relief and Rescue Operations in the event of Calamities or Disasters.
Assist the Government in Socio-economic development and environmental concerns.
Training is supervised and course-directed by reserve officers who are occupational specialty qualified, former active duty members, and already incorporated in the ready reserve force. Unit soldiers also undertake regular courses from the AFP and regular Army TRADOC and special schools. There are reservists who are already authorized to don infantry, ordnance, civil military operations, psychological operations and airborne badges. The unit reservists also undertake specialized trainings from other government agencies. Many unit officers and personnel have already served the fixed two-year called-to-active-duty tour in the regular force. As a modern reserve force, many possess advanced degrees, technical and professional certifications that fill skill gaps in the regular force. Most of the officers and personnel are also employed in local government administration and private and government security services. Reservists of the unit are considered excellent force multipliers in internal security and external defense operations.