The 43d Philippine Scout Infantry Regiment (43d INF (PS)) was part of USAFFE's Philippine Division, during World War II.

History of the 43d Infantry Regiment

The 43d Infantry Regiment was formed in June 1917, at Fort Douglas, Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

. In April 1921, it became a Philippine Scout

Philippine Scouts

The Philippine Scouts was a military organization of the United States Army from 1901 until the end of World War II. Made up of native Filipinos assigned to the United States Army Philippine Department, these troops were generally enlisted and under the command of American officers, however, a...

 unit and joined the Philippine Division, on 22 October. In 1922, the unit was deactivated.

The 1st Battalion was reactivated on 1 April 1941, formed from troops transferred from the 45th Infantry Regiment (PS), and the 329 troops of the 1st Battalion served at Pettit Barracks

Pettit Barracks

Pettit Barracks was located in Zamboanga City and, along with Camp John Hay, was the location of the US Army's 43d Infantry Regiment ....

 and Camp John Hay. The 1st Battalion surrendered to the Japanese on 9 April 1942. However, elements of Troop C, 26th Cavalry, and Companies C and E, 43d Infantry, all isolated in Northern Luzon, became the core of guerrilla units which continued to resist until the end of the war.

The unit was reorganized following the war, but disbanded a year later.