MEU/ARG Issues

With the demise of informative DOT&E annual reports, we are left having to scratch around for breadcrumbs of information about the state of our military.  One such crumb is a Breaking Defense website article, undoubtedly intended as a praise-packed, puff piece, about the 2024 deployment of the 15^th MEU.  On the face of it, the deployment was a non-stop cascade of puppy dogs and kittens sliding down double rainbows and landing in pots of gold.  However, a careful reading between the lines reveals some surprising systemic problems that degraded the unit’s readiness and combat capability.  Let’s look closer.
 

Starting in January and spanning through most of 2024, the 15th MEU and Amphibious Squadron-5 completed nine major exercises; visited 11 foreign countries; responded to a typhoon that hit the Philippines; and completed 80 operations over the course of 10 months.

As an aside, why are we still doing 10 month deployments?  Does anyone remember the Navy’s Optimized Fleet Response Plan (OFRP - 2014) of several years past that was going to optimize the deployment/training/maintenance cycle to ensure readiness and prevent extended deployments?  Yeah, that lasted about a day (see, “Deployments and OFRP”).
 
The deployment did not get off to a good start, losing one of its three amphibious ships, USS Boxer, almost immediately.
 

Just days after it initially deployed in April, the Boxer (LHD-4) was forced back to San Diego to fix a variety of maintenance issues.[1]

Even later in the deployment when Boxer eventually rejoined the ARG, ship maintenance issues continued.
 

But he [Capt. James Robinson, ARG commodore] did concede there was at least one “OAI” — an acronym short for “operations, activities and investments” — that was missed due to the ship’s maintenance problems.[1]

Ships were not the only equipment failures.  The ACV proved challenging, as well.
 

… MEU deployed with 12 ACVs in tow, and, he said, “it’s almost underwhelming to say that we learned a lot.”

There were challenges in understanding how to maintain the vehicles while deployed and concerns about corrosion prevention.[1]

This suggests that the Marine’s training with the ACV was significantly inadequate despite a decade or more of use and supposed thorough testing.  Corrosion prevention?  Seriously?  Aren’t these things designed to be immersed in salt water and be exposed to a salt-air environment for months on end?  How could corrosion possibly still be a problem and an unexpected problem, at that?
 

ACV - No one thought it would get wet or warm?

Another disturbing note was this,
 

The MEU also had to coordinate sending beach survey teams ahead of the ACVs to check that conditions were safe.[1]

The ACV is supposed to be able to handle less than perfect weather and physical conditions.  If not, if it can only be used in perfect conditions and hospitable locations then we have a nearly useless piece of equipment.  Combine this note with the history of ACV accidents and one can’t help but conclude that the vehicle is far less safe and effective than advertised.
 

At one point, even the water temperatures were cause for a concern. Dynan [Col. Sean Dynan, 15th MEU commanding officer] recalled that the waters in the Philippines were particularly hot, and there were questions about whether the vehicle’s cooling systems would cope.
 
“That was somewhat of a surprise,” he added.[1]

After all this time, water temperature effects were a surprise?  Really?  No one thought to test the vehicle in warm water?  The ACV’s first RFI dates back to 2011 and in the intervening 13 years no one thought to test the vehicle in warm water despite knowing that the Pacific would be a major area of employment?  What kind of geniuses were working on this program?
 
The ACV was not the only piece of equipment to experience challenges.
 

The MEU’s training and deployment also coincided with the Pentagon’s three-month-long grounding of the V-22 Osprey fleet, including the Marine Corps’ MV-22 variant.
 
… restrictions and intermittent V-22 Osprey groundings …
 
Due to where the MEU was operating, Dynan said the restrictions the Pentagon left in place after the Osprey fleets returned to flight didn’t affect operations. But the missed training time did mean that his flight crews had to work fast to regain qualifications and proficiency once the grounding was lifted in April.[1]

The MV-22 continues to be a problematic piece of equipment, useful only in very specific and restricted scenarios.  In any truly objective assessment, the MV-22 would have to be declared a very marginal success or an outright failure.
 
 
Discussion
 
As noted, we have no hard data to work with and must, instead, attempt to read between the lines and look for patterns.  Doing so reveals that the MEU/AGR have serious equipment and maintenance problems and that testing and training has been woefully inadequate.  This is true for both the Navy and Marines.  I suppose it’s good that the Marines have declared themselves out of the amphibious assault business (so why are they floating around on endless deployments?) because they seem to utterly lack the ability to execute a successful assault.
 
 
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[1]Breaking Defense website, “One deployment, three ships and a whole lot of challenges”, Justin Katz, 5-Feb-2025,
https://breakingdefense.com/2025/02/one-deployment-three-ships-and-a-whole-lot-of-challenges/