Humberto Acosta-Rosario

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Humberto Acosta-Rosario
PFC Humberto Acosta-Rosario
Only Puerto Rican MIA whose body has never been recovered
Born(1947-01-15)January 15, 1947
Mayagüez, Puerto Rico
DiedAugust 22, 1968(1968-08-22) (aged 21)
Tay Ninh City, Vietnam
Puerto Rico National Cemetery in Bayamón, Puerto Rico
AllegianceUnited States of America
Service/branchUnited States Department of the Army Seal.svg United States Army
Years of service1967-1968
Private First Class
UnitCompany B, 1st Battalion, 5th Infantry (Mechanized); 25th Infantry Division
Battles/warsVietnam War
AwardsPurple Heart ribbon.svg Purple Heart

PFC Humberto Acosta-Rosario[note 1] (January 15, 1947 – August 22, 1968) was a member of Company B, 1st Battalion, 5th Infantry (Mechanized); 25th Infantry Division, United States Army who is currently the only Puerto Rican MIA whose body has never been recovered.

Early years[edit]

Acosta-Rosairo was born and raised in the city of Mayagüez, Puerto Rico, which is located in the western coast of Puerto Rico. He joined the Army after graduating from high school.

Vietnam War[edit]

In 1968, Acosta-Rosario was ordered to South Vietnam and assigned to Company B, 1st Battalion, 5th Infantry (Mechanized); 25th Infantry Division. In his unit he served as a machine gunner.[1]


On August 22, 1968, Acosta-Rosario accompanied some members of his unit during a reconnaissance mission. His unit was attacked by North Vietnamese Army (NVA) regulars in the vicinity of Bến Củi Rubber Plantation, east of Tay Ninh City, Tay Ninh Province. His unit, Company B, was forced to withdraw from the battlefield under heavy enemy attack. The unit regrouped and discovered that PFC Acosta-Rosario and another machine gunner, PFC Philip T. DeLorenzo, Jr., were missing. Acosta-Rosario's platoon sergeant stated that he believed PFC Acosta-Rosario had been hit by enemy fire prior to the unit's withdrawal.[2]

The NVA forces were driven back after artillery fire and helicopter gunships were called in and Company B returned to its original position. An extensive ground search was conducted by members of Company B for the two missing soldiers. The only body recovered was that of PFC DeLorenzo's, along with the two M60 machine guns. A search by two battalions who were brought in to sweep the area of only enemy activity did not produce Acosta-Rosario's body and he was officially listed as Missing in Action.[3]

Friendly forces captured documents from the NVA 7th Infantry Division dated August 23, 1968. The documents were analyzed by U.S. intelligence agencies. The reports documented that Humberto Acosta-Rosario was in fact captured by NVA forces during the battle near the Ben Cui Rubber Plantation. However, the U.S. military chose not to upgrade his status to Prisoner of War.

Acosta-Rosario's name was listed in the United States Government's "Last Known Alive" list. This list, which was released by the U.S. Government in April 1991, includes missing Americans whom the U.S. believed might have survived their initial loss incident.[4] In March 1978, Acosta-Rosario was declared dead/body not recovered based on a presumptive finding of death.


PFC Humberto Acosta-Rosario was posthumously promoted to the rank of Staff Sergeant. His name is on panel 47W, line 030 of the Vietnam Memorial Wall in Washington, D.C. and he is also list in El Monumento de la Recordación located in San Juan, Puerto Rico. There is a headstone with his name inscribed Plot: MB 0 6 of the Puerto Rico National Cemetery in Bayamón, Puerto Rico.[5]

Military decorations awarded[edit]

File:El Monumento de la Recordacion.jpg
El Monumento de la Recordación

Acosta-Rosario was awarded the following decorations:

Combat Infantry Badge.svg
Bronze star
Combat Infantryman Badge
Purple Heart National Defense Service Medal
Vietnam Service Medal with 1 bronze service star Vietnam Gallantry Cross Unit Citation Vietnam Campaign Medal

See also[edit]

Other articles of the topics Biography AND Puerto Rico : José L. Santiago, Carmen Lozano Dumler, David Lopez, Orlando Fernández, Ramón Núñez-Juárez, Luis F. Castro, Lizbeth Robles

Other articles of the topic Biography : J. Frank McInnis, List of Burmese actors, Ahmad Kadry, Mildred Cleone Haynes Hodges, Mo Karn, Verbin Sutherland, Jean-Yves Adam

Other articles of the topic Puerto Rico : List of people on the postage stamps of Puerto Rico, Edwin Perez (singer), Carmen Lozano Dumler, Carlos Ortiz Longo, Enrique Romero-Nieves, Julio Cesar Badillo, List of primary statistical areas of the United States
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  • List of Puerto Ricans
  • List of Puerto Rican military personnel
  • Puerto Ricans Missing in Action - Vietnam War



  1. "My MIA's Information". Archived from the original on October 27, 2009. Retrieved October 10, 2010. Unknown parameter |url-status= ignored (help)
  2. 25th Infantry
  3. *Bio, Acosta-Rosario, Humberto
  4. Bio, Acosta-Rosario, Humberto
  5. In Memory of SSgt. Humberto Acosta-Rosario

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