Philippine Department
The Philippine Department was a regular United States Army organization whose mission was to defend the Philippine Islands and train the Philippine Army. On 9 April 1942, during World War II, the organization surrendered to the Japanese. The department and its sub-units were predominantly under the command of American officers, including an American general, while the majority of the troops were enlisted Filipinos, known as the Philippine Scouts. The primary force of this department was the Philippine Division. Of the 22,532 troops, 10,473 were members of the Philippine Division itself.
This unit was formally organized in 1913 and, on 26 July 1941, was attached to US Army Forces – Far East. Following the creation of USAFFE, the Philippine Department became, in effect, a corps area service and logistical command. Tactical command was permanently transferred to USAFFE's control.
The Philippine Department in 1914
General Headquarters:Troops:
- Field Hospital No. 4
- Ambulance Company Number 4
- Headquarters, Company K, 3d Engineers
- Headquarters, Company L, 3d Engineers
- Company F, Signal Corps
- Company L, Signal Corps
- 7th Cavalry Brigade
- 8th Cavalry Brigade
- 2nd Field Artillery Regiment
- Coast Defenses of Manila and Subic Bays
- 8th Infantry Regiment
- 13th Infantry Regiment
- 24th Infantry Regiment
- China Expedition - 15th Infantry
Commanders of the Philippine Department
Commanders US Army Forces in China
From April 1923 until March 1938, the department was in command of U.S. Army Forces in China.| From | To | Commander |
| 1 April 1923 | May 1926 | Brig. Gen. William D. Connor |
| May 1926 | 14 April 1929 | Brig. Gen. Joseph C. Castner |
| 15 April 1929 | 27 June 1932 | Col. James D. Taylor |
| 27 June 1932 | 7 July 1935 | Col. Reynolds J. Burt |
| 7 July 1935 | 14 May 1937 | Col. George A. Lynch |
| 14 May 1937 | 15 March 1938 | Col. Joseph A. McAndrew |
US Army Troops – Philippines – 31 July 1941
At the time of USAFFE's formation the force consisted of 22,532 troops. Of the 1,340 officers, 775 were reservists. 7,293 troops were assigned to the infantry and 4,967 were assigned to the Harbor Defenses of Manila and Subic Bays. About 2,500 troops served in a service or supply position, mainly quartermaster or medical units. The majority of the department's troops were stationed on Luzon.Total Strength: 22,532.
- USAFFE Headquarters, Manila
- Philippine Department Headquarters, Fort William McKinley
- Philippine Division
- 26th Cavalry Regiment
- 43d Infantry Regiment
- 60th Coast Artillery AA
- 86th Field Artillery Regiment
- 88th Field Artillery Regiment
- 808th Military Police Company
- Harbor Defenses of Manila and Subic Bays
- Philippine Army Air Corps
- Service Detachments
- Other
Casualty count
Philippine Forces
United States forces
| Type | Navy | USMC |
| KIA | 337 | 89 |
| Wounded died later | 2 | |
| Died POW | 630 | 413 |
| Invalided from Service | 3 | 1 |
The Marines were from the 4th Marines.
US Navy casualties/losses
Patch of the Philippine Department
All units of the department wore the Philippine Department shoulder sleeve insignia, with the exception of the Philippine Division, which wore their own patch: a golden carabao on a red shield.Officially, the Philippine Department's insignia featured the Philippine Sea Lion, in white, superimposed on a blue oval with a height of 2.5 inches. The Sea Lion is derived from the coat of arms of Manila. The Philippine Department and Philippine Division insignia were both approved on 8 July 1922.