The 1st Infantry Division, Philippine Army, nicknamed Tabak Division, is the Philippine Army's primary infantry unit, and specializes in anti-guerrilla warfare. The division has been involved in combating terrorists in Southern Mindanao.
The 2nd Infantry Division, Philippine Army nicknamed Jungle Fighter, is the Philippine Army's primary infantry unit specializing in jungle warfare.
Battle of Chosin Reservoir order of battle is a list of the significant units that fought in the Battle of Chosin Reservoir between November 27, 1950 and December 13, 1950.
The 41st Infantry Division was a division of the Philippine Army under the United States Army Forces in the Far East (USAFFE).
The 61st Division of the Philippine Army was an infantry division from the 1941 to 1942.
The 51st Infantry Division was a division of the Philippine Army under the United States Army Forces in the Far East (USAFFE). It fought in Southern Luzon and in Bataan until it surrendered in April 9, 1941.
The 31st Infantry Division was a division of the Philippine Army under the United States Army Forces in the Far East (USAFFE).
The 21st Infantry Division was one of the 10 reserve division of the Philippine Army mobilized under the United States Army Forces in the Far East (USAFFE). The unit was involved in the delaying action against the Japanese invasion in the plains of Central Luzon, and the Battle of Bataan in 1942.
The 11th Infantry Division was one the reserve division of the Philippine Army that was mobilized in September 1941 under the United States Army Forces in the Far East (USAFFE).
The 71st Infantry Division was a reserve division of the Philippine Army that fought under the United States Army Forces in the Far East (USAFFE). It was known for its fight with Japanese invading forces in Layac Junction, that was ordered to hold until all retreating Fil-American forces of crossed into Bataan Peninsula.
The 81st Infantry Division was a reserve division of the Philippine Army under the United States Army Forces in the Far East (USAFFE). It was established in the prewar period and fought 1941–1942. Its troops are from Cebu, Bohol, and Leyte but most of its troops are Americans and junior officers are Filipinos coming mostly from Luzon. The division served in defense of Mindanao but it never commanded the 4 of its maneuver regiments but was supplemented with 61st Infantry from Panay and 73rd Infantry from Negros. Also, 2nd Regular Regiment was transferred to its command in the early part of Japanese invasion of Mindanao.
The 101st Infantry Division was one the reserve divisions of the Philippine Army under the United States Army Forces in the Far East (USAFFE)'s 10th Military district mainly entire island of Mindanao.
Luzon Force or Bataan Defense Force is a short-lived Field Army size unit created in the Philippines after the restructure of command organized by General Douglas MacArthur commander of US Army Forces in the Far East (USAFFE). He wished to control the 4 Commands from Australia with its representative in Corregidor Island. Major General Jonathan M. Wainwright IV was selected to command as the senior general officer in Bataan peninsula.
South Luzon Force was a corps-sized unit of the US Army Forces Far East (USAFFE) active in the Philippines between 1941 and 1942. Created along with other 3 commands under the USAFFE, it was officially announced on November 4, 1941, and BGen. George M. Parker was appointed to command, making him responsible for the defense of Southern Luzon of any invasion. General Parker established his headquarters in Fort William McKinley in Rizal province.
Mindanao Force was a corps size military unit defending the island of Mindanao, the second largest island of the Philippines, from March 17, 1942, to its surrender on May 9, 1942. The force was created when the Visayas-Mindanao Force was split into two in March 1942. It was initiated in February 1942 in the headquarters of the United States Army Forces in the Far East, but took effect when General Douglas MacArthur departed for Australia on March 17, 1942.
81st Infantry Regiment is a military unit and formation of the Philippine Commonwealth Army
Cebu Brigade is a military unit and formation organized in January 1942 by Visayas-Mindanao Force to defend the island of Cebu after ordering 81st Infantry Division Headquarters moved to Mindanao to bolster its defenses. USAFFE and later USFIP saw the island vital for the transport of the supplies to Bataan and Corregidor. Colonel Irvine Scudder was appointed as its commander until its surrender to Japanese.
91st Infantry Regiment is a reserve unit of the Philippine Commonwealth Army during World War II. It was a part of 91st Infantry Division, based in Leyte but was transferred to Luzon to augment the defense there. It was held as a reserve force of USAFFE but participated in the Battle of Bataan.
91st Field Artillery Regiment is a reserve unit of Philippine Commonwealth Army activated and organized in August 1941. It is part of 91st Infantry Division under Brigadier General Luther R. Stevens, PA who fought in Battle of Bataan. Whole regiment became POW after surrendering on April 9, 1942, to Japanese 14th Army.
Samar-Leyte Force is garrison during World War II in the Philippines, the main objective is to prevent any invasion of the Japanese for the islands of Samar and Leyte located in the eastern Visayas Islands. The Garrison was not able to see action directly but provided troops to Luzon and Mindanao fronts. The Japanese did not land until the US Forces Philippines surrendered in May 1942. However, the sector was the highest guerilla activity in the entire country after the surrender.
Commonwealth of the Philippines 
