A MCCRE is a formal training evaluation conducted to test and confirm the combat readiness of a unit. The combined MCCRE consisted of a field exercise featuring live force-on-force training and a virtual and simulated training.

“This intensive evaluation was conducted in a dynamic, force-on-force environment, which saw the 4th Marine Regiment, 3rd Reconnaissance Battalion, and Headquarters Battalion operating as a cohesive force under the command of the 3rd Marine Division headquarters,” said Maj. Jared Griffith, 3rd Marine Division and lead planner of the MCCRE. “A key capability validated during the exercise was the ability of units to seize maritime terrain and sustain operations in a disaggregated environment - a scenario highly reflective of the current operational landscape in the Indo-Pacific Region.”

Key training events included a night raid, a military freefall jump, multiple air assaults, casualty evacuations and a High Mobility Artillery Rocket System rapid infiltration.

“Our lethality as a Regimental Headquarters working within the Division was tested, and I’m proud to say we learned a lot and grew as a team, from staff to small unit leaders,” said Col. Richard Barclay, commanding officer, 4th Marine Regiment. “From multiple air assaults, night raids and conducting operations while under chemical attack, we learned a great deal about what we do well and what we need to improve. Our performance proves that we are lethal, adaptive, and ready to be counted on within the First Island Chain.”

A major accomplishment was a large-scale air assault on Ie Shima, Okinawa by 4th Marines with support from the 3rd Recon and Marine Aircraft Group 36, testing the coordination to execute across multiple domains and validating major training objectives for the 4th Marines.

“The success of the MCCRE was a testament to the seamless integration and support from numerous other units,” said Griffith. “Bringing all these entities together posed several challenges, however, executing the MCCRE with three major subordinate elements simultaneously provided an invaluable and realistic training repetition for command and control.”

The combined MCCRE successfully demonstrated that the 3rd Marine Division’s MSEs can operate in a dispersed and challenging environment, as an adaptive force and prepared to act when the nation calls.

“The rapidly changing battlefield requires a command-and-control structure that is as resilient and adaptable as our Marines,” said Barclay. “Throughout this event, we operated in a disaggregated [command and control structure] successfully commanding multiple subordinate units across a dispersed battlespace against a thinking enemy.”

The 3rd Marine Division operates as a first island chain stand-In force to secure, seize or defend key maritime terrain to deny and disrupt adversary actions in support of the fleet, the joint force and allies and partners.