The 9th Infantry Division, Philippine Army, known officially as the Spear Division, is the Philippine Army's primary infantry unit assigned to combat communist insurgency in the Bicol Region.

The 9th Infantry Brigade (S) PA was activated on August 15, 2002, pursuant to General Orders nr 456 HPA dated September 2, 2002.

It was during his time that initial measures were made to establish the Division Headquarters at Camp Elias Angeles at Brgy.

However, initial developments and camp structures, which were newly constructed, were heavily damaged and flattened by three (3) successive strong typhoons that struck the Bicol Region, namely: YOYONG, WINNIE, and KIKAY in November 2004.

Their mission is to conduct sustained Internal Security Operations (ISO) in the Bicol Region, excluding Masbate (8ID), to neutralize the Southern Tagalog Regional Party Committee (STRPC) and the armed wing of the Communist Party of the Philippines (CPP), the New Peoples Army (NPA) in order to create a physically and psychologically sound environment conducive for development and commerce of the Bicol Region.