The Lost Battalion was the 2nd Battalion, 131st Field Artillery, 36th Infantry Division of the U.S. Army. The men of the battalion, plus the survivors of the sunken cruiser USS Houston, were captured by the Japanese on the island of Java in the Dutch East Indies in March 1942. It is called the lost battalion because the fate of the men was unknown to the United States until September 1944. They were prisoners of war for 42 months until the end of World War II. 534 soldiers from the battalion and 368 survivors of Houston were taken prisoner. Most of the men were sent to Thailand to work on the Burma Railway, the building of which is portrayed in the film The Bridge on the River Kwai. Of the 902 soldiers and sailors taken captive, 163 died in captivity. Most of the prisoners of war were from western Texas.

The 36th Infantry Division ("Arrowhead") also known as the "Panther Division", the "Lone Star Division", "The Texas Army", and the "T-patchers", is an infantry division of the U.S. Army and part of the Texas Army National Guard. The 36th Infantry Division was organized during World War I (1914–1918) from units of the Texas National Guard and of the Oklahoma National Guard. As an all-Texas unit, the Arrowhead Division was called to service for World War II (1937–1945) on 25 November 1940, was deployed to the European Theater of Operations in April 1943, and returned to the Texas Army National Guard in December 1945.