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4th Infantry Division (Philippines)

The 4th Infantry Division, Philippine Army, known officially as the Diamond Division, is one of the Philippine Army's infantry units in Northern Mindanao.

Fourth Infantry Division
4th Infantry Division (Philippines).gif
ActiveJanuary 15, 1946 – Present
CountryPhilippines Philippines
BranchPhilippine Army
TypePhilippine Army Infantry BC.jpg Infantry
RoleConventional Warfare, Anti-Guerrilla Operations
Size3 Brigades
Part ofPhilippine Army (Since 1946)
Garrison/HQCamp BGen Edilberto Evangelista, Cagayan de Oro City
Nickname(s)Diamond Division
PatronSt. Ignatius of Loyola
AnniversariesJanuary 15
March 22 (Philippine Army foundation day)
EngagementsCommunist Insurgency in the Philippines
Anti-guerilla operations against the NPA
BGen Franco Nemecio Gacal, AFP
MG Oscar T. Lactao AFP
MG Roy Cimatu AFP
MG Cardozo Luna AFP
BG Tirso Fajardo, AFP
BG Patricio Borromeo AFP
BG Ramon Aguire AFP
BG Climaco Pintoy AFP
BG Benjamin Molina AFP
BG Manuel Mandac AFP
BG Rigoberto Atienza AFP
Armed Forces Occupational Specialty InsigniaPhilippine Army Infantry BC.jpg



On January 15, 1946, right after the World War II, upon the reestablishment of the Commonwealth Government, all Military Districts were converted to military areas; Pursuant to Section 1 General Orders Number 46 of HAFP dated January 8, 1946. The 1st and 2nd Military Areas (IMA-IIMA) was in Luzon, while 3rd Military Area (IIIMA) in the Visayas, and the 4th Military Area (IVMA) in Mindanao. The remaining forces of the 10th MD were absorbed to Military Police Command (MPC) based at Camp Overton, Iligan.


4th Infantry (Diamond) Division conducts internal security operations to dismantle four (4) priority New People's Army fronts and degrade three (3) priority New People's Army areas in Caraga region and portion of Region 10 by 2009 to attain a physically and psychologically secure environment conducive to continuous development.

Current line unitsEdit


  • 401st Infantry (UNITY) Brigade - The 401st Infantry (UNITE ‘N FIGHT) Brigade, 4th Infantry (DIAMOND) Division, Philippine Army traces its humble beginnings from the 4th Infantry Brigade, 4th Infantry Division; the 1st Infantry (1/4)Brigade, 4th Infantry Division; and to its present designation - the 401ST Infantry Brigade, 4th Infantry Division, Philippine Army. On 15 July 1973, the 4th Infantry Brigade was renamed “1st Infantry Brigade”.
  • 402nd Infantry (STINGERS) Brigade


  • 8th Infantry (DEPENDABLE) Battalion
  • 23rd Infantry (MASIGASIG) Battalion
  • 29th Infantry (MATATAG) Battalion
  • 30th Infantry (PYTHON) Battalion
  • 36th Infantry (VALOR) Battalion
  • 26th Infantry (EVER ONWARD) Battalion
  • 58th Infantry (DIMALULUPIG) Battalion
  • 75th Infantry (MARAUDER) Battalion
  • 88th Infantry (MARINGAL) Battalion

Service Support Units (SSU)Edit

  • Camp Evangelista Station Hospital (CESH)
  • Headquarters and Headquarters Service Battalion (HHSBn)
  • Service Support Battalion (SSBn)
  • 4th Division Training School (4DTS)
  • 4th Army Training Unit (4ATG)
  • 10th Field Artillery Battalion (10FAB)
  • Civil Military Operations Battalion (CMOBn)
  • 10th Forward Service Support Unit,ASCOM, PA (10FSSU)

See alsoEdit

External linksEdit