Marines launch fresh investigation into July deaths of nine men in amphibious tank


The Marine Corps has launched a fresh probe into the readiness of its troops before they participated in an exercise that ended in the death of nine people last year, after their families branded the first probe a whitewash. 

On July 30, a seafaring armoured tank sank off San Clemente Island – located off the Southern California coast – killing eight Marines and one sailor. 

The announcement of the second investigation comes less than two weeks after the maritime branch released its findings into the accident.

It was found the accident was caused by inadequate training, shabby maintenance of the amphibious vehicles and poor judgement by commanders, the report said.

The new probe also follows outcry from the relatives of some of the service members killed in the disaster, who have questioned why no general was held responsible in the report.  

The vehicle took on water on July 30, 2020 while 15 Marines and one sailor were inside near San Clemente Island in Los Angeles County. Pictured: The 15th Marine Expeditionary Unit is seen during training on July 27 2020, three days before the disaster

The vehicle took on water on July 30, 2020 while 15 Marines and one sailor were inside near San Clemente Island in Los Angeles County. Pictured: The 15th Marine Expeditionary Unit is seen during training on July 27 2020, three days before the disaster

There are about 800 AAV's in the Marin'e inventory that can carry up to 21 people and each weighs 26 tons

There are about 800 AAV’s in the Marin’e inventory that can carry up to 21 people and each weighs 26 tons

The training accident 70 miles (113 kilometers) off San Diego´s coast was one of the deadliest for the Marines in recent years. Leaders said it could have been prevented.

An investigation report released March 26 detailed a slew of missteps and oversights that left the crew of the amphibious assault vehicle in the dark and using their cell phone lights to desperately try to find an unmarked escape hatch as they took on water. There were also no safety boats nearby to save them.

Marine Corps officials declined to say what prompted the unusual move to open an additional investigation, which started Friday and could lead to new disciplinary actions. 

A board of officers led by Lt. Gen. Carl Mundy will review the formation of the 15th Marine Expeditionary Unit at Camp Pendleton, its readiness and training and its oversight by headquarters.

‘The goal is to ensure the Marine Corps is doing everything possible to prevent this type of mishap from happening again,’ a statement from the Marine Corps said.

The Marines use the vehicles to transport troops and their equipment from Navy ships to land. The Assault Amphibious Vehicle (AAV) was returning to the USS Somerset, an amphibious ship, after a day of training training for the Marines on San Clemente Island, a Navy-owned facility.

An Undersea Rescue Command deploys the Sibitzky Remotely Operated Vehicle (ROV) from the deck of the Military Sealift Command-chartered merchant vessel HOS Dominator off the coast of Southern California in search for the bodies on Monday, August 3, 2020

An Undersea Rescue Command deploys the Sibitzky Remotely Operated Vehicle (ROV) from the deck of the Military Sealift Command-chartered merchant vessel HOS Dominator off the coast of Southern California in search for the bodies on Monday, August 3, 2020

This image is an aerial view of the coast near San Clemente Island where the incident occurred

This image is an aerial view of the coast near San Clemente Island where the incident occurred 

Pictured: A map showing the location of San Clemente island, off the coast of San Diego

Pictured: A map showing the location of San Clemente island, off the coast of San Diego 

The armored vehicles are outfitted with machine guns and grenade launchers, and look like tanks as they roll ashore for beach attacks, with Marines pouring out of them to take up positions. 

Three commanders have been dismissed as a result, including Col. Christopher Bronzi, the commanding officer of the 15th MEU, and Lt. Col. Michael Regner, who commanded the 1st Battalion, 4th Marines.

The unit is made up of more than 1,000 troops, all of which reported to Bronzi as part of his task force.  

Seven other military personnel faced administrative or disciplinary action.

The Marine Corps announced the probe after notifying all families of those who died. Some of the families told The Washington Post they questioned why no generals were held accountable.

‘Why are these men allowed to be in control of people´s lives period anymore?’ Christiana Sweetwood of Danville, Virginia, whose son was among those killed, said in an interview last week with the newspaper. 

‘No more. That´s the angry part of me speaking. Are these generals getting off and these lower-level guys taking the blame?’ 

Pfc Bryan J. Baltierra, 19, of Corona, California

Found at the scene was Lance Cpl Guillermo S. Perez, 20, of New Braunfels Texas. His body was flown to the Dover base on August 5

The body of Pfc Bryan J. Baltierra (left), 19, of Corona, California, was flown to Delaware on Wednesday. Found at the scene was Lance Cpl Guillermo S. Perez (right), 20, of New Braunfels Texas. His body was flown to the Dover base on August 5

Lance Cpl Marco A. Barranco, 21, of Montebello, California

Pfc Jack Ryan Ostrovsky, 21, of Bend, Oregon

Other victims include Lance Cpl Marco A. Barranco (left), 21, of Montebello, California, and Pfc Jack Ryan Ostrovsky (right), 21, of Bend, Oregon

Pfc Evan A. Bath, 19, of Oak Creek, Wisconsin, was killed during the accident last month

Pfc Evan A. Bath, 19, of Oak Creek, Wisconsin, was killed during the accident last month

US Navy Hospitalman Christopher Gnem, 22, of Stockton, California, was one of the victims. Gnem was posthumously advanced to the rank of Petty Officer Third Class and awarded his enlisted Fleet Marine Force Warfare Specialist qualification

US Navy Hospitalman Christopher Gnem, 22, of Stockton, California, was one of the victims. Gnem was posthumously advanced to the rank of Petty Officer Third Class and awarded his enlisted Fleet Marine Force Warfare Specialist qualification

Cpl Wesley A. Rodd, 23, of Harris, Texas

Lance Cpl Chase D. Sweetwood, 19, of Portland, Oregon

Cpl Cesar A. Villanueva, 21, of Riverside, California

Other victims include: Lance Cpl Chase D. Sweetwood (center), 19, of Oak Creek, Wisconsin, Cpl Wesley A. Rodd (left), 23, of Harris, Texas, and Cpl Cesar A. Villanueva (right), 21, of Riverside, California

News of the investigation released on March 26 raised the possibility that more people may be culpable for the disaster.

These include Major General Robert Castellvi, the former commanding general of the 1st Marine Division, who oversaw the training of the Marines in the platoon of amphibious assault vehicles involved in the July 30 incident.

Lieutenant General Steven Rudder, the commanding general of Marine Corps Forces Pacific, found Castellvi ‘bears some responsibility’ because the Marines involved did not receive a required assessment before they were reassigned to the 15th MEU.

This is known as a Marine Corps Combat Readiness Evaluation.

Rudder opted not to discipline Castellvi – who is now the service’s inspector general – saying the marines involved had already been transferred under Bronzi. 

The former commander of the 3rd Assault Amphibian Battalion was also cited in the investigation, but did not name him. It said the commander failed to ensure the marines involved in the AAV platoon received the required readiness evaluation and that the vehicles were fully operational before being assigned to the 15th MEU.

The coffins of the nine men who died arrive at the Dover Air Force Base in Delaware where they were received by family members, August 12, 2020

The coffins of the nine men who died arrive at the Dover Air Force Base in Delaware where they were received by family members, August 12, 2020

Rudder also wrote in his assessment that the coronavirus pandemic had a part to play in the disaster.

‘In my opinion, this distracted personnel from the attention to detail required to form a MEU,’ Rudder wrote. 

‘However, to the extent any such distractions occurred they should not have prevented the units involved from accomplishing their respective missions.’ 

A conversation prompted by the disaster was held last week between General David H. Berger, the commandant of the Marine Corps, and Admiral Mike Gilday, the chief of naval operations.

‘What we discussed was the fact that there are gaps and seams where there shouldn’t be gaps and seams in Navy and Marine Corps operations at the tactical level,’ Gilday said in a call with reporters.

‘So these are combined operations that we’ve been doing for some time now, and to have separate requirements on the Marine Corps side and the Navy side just doesn’t make sense.’ 

Those killed in the tragedy were: 

  • Pfc. Bryan J. Baltierra, 18, of Corona, California
  • Lance Cpl. Marco A. Barranco, 21, of Montebello, California
  • Pfc. Evan A. Bath, 19, of Oak Creek, Wisconsin
  • Navy Hospitalman Christopher Gnem, 22, of Stockton, California
  • Pfc. Jack Ryan Ostrovsky, 21, of Bend, Oregon
  • Lance Cpl. Guillermo S. Perez, 20, of New Braunfels, Texas
  • Cpl. Wesley A. Rodd, 23, of Harris, Texas
  • Lance Cpl. Chase D. Sweetwood, 18, of Portland, Oregon
  • Cpl. Cesar A. Villanueva, 21, of Riverside, California

Seven marines in the vehicle, including its commander, survived. 

FILE - In this July 31, 2020, file photo, the U.S. flag was lowered to half-staff at Park Semper Fi in San Clemente, Calif., after a seafaring assault vehicle sank off the coast of Southern California.

FILE – In this July 31, 2020, file photo, the U.S. flag was lowered to half-staff at Park Semper Fi in San Clemente, Calif., after a seafaring assault vehicle sank off the coast of Southern California.

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