During the Vietnam War, an estimated 48,000 Puerto Ricans served in the four branches of the armed forces. Some sources state that a total of 345 Puerto Ricans who were from the island died in combat, however according to a report by the Department of Defense, titled "Number of Puerto Ricans serving in the U.S. Armed Forces during National Emergencies" the total number of Puerto Ricans who died was 455 and that were wounded was 3,775. A total of 17 men were listed as Missing in Action (MIA), and of these, PFC. Humberto Acosta-Rosario is the only one whose body has never been recovered and is currently still listed as MIA.