4th Assault Amphibian Battalion

The Tab is Earned.
Congratulations to our new Martial Arts Instructors on completing the MAIC. Their dedication to the Marine Corps Martial Arts Program keeps this Battalion combat-ready.

On Mar 4th, the Marines completed their final evolution after weeks of enduring rigorous training and intense classroom knowledge. They will continue to training Marines and advance their warfighting capabilities.

(U.S Marine Corps Photos contributed by Sgt Luis Saldana)

Amphibious nature!
On March 2, Marines with Littoral Craft Companies (LCC) Charlie and Delta conducted maritime operations training alongside the Command Training Team in Tampa, FL.

Evolutions focused on maritime navigation, tactical towing capabilities, reconnaissance, and craft recovery to ensure peak operational readiness.

(U.S Marine Corps Photos contributed by Sgt Luis Saldana)

“In the United States Marine Corps , promotion isn’t just about rank; it’s about legacy, sacrifice, and who stood beside you through it all.

Traditions run deep in this Corps, and they run even deeper in families who live this life every day such as mine.

Having my kids pin me and my wife place a statement on my Chief Warrant Officer 4 bars wasn’t just symbolic …. it was earned. She stood the duty with me. She endured the deployments, the field ops, the late nights, the PCS moves, and the weight that comes with climbing to CWO4 — a rank only 1.3% of officers reach. That moment belonged to my family and I and will be a lasting statement in our memories.

When a Marine makes it to the rank of CWO4, it represents decades of technical mastery, leadership, and trust placed in you by the institution. But when my wife pins those bars on your collar, it represents something just as important — partnership, loyalty, and shared sacrifice.

Honor, Courage, and Commitment is the embodiment of our corp values. And TRADITIONS is what is different. I wouldn’t be here without the support of my wife Yohira and our kids Bella and Cromwell. "

-CWO4 Cromwell Downs

(Photos contributed by Sgt Luis Saldana)

Fair winds & Following Seas

​We would like to extend our sincerest gratitude to Lieutenant Commander Sterling Claypoole for his dedicated service as the Chaplain for the 4th Assault Amphibian Battalion.

​His leadership and spiritual guidance have made a lasting impact on the Marines within this Battalion. Thank you for your selfless service, Sir.

We wish you the very best in your future endeavors.

Rounds down range!

​During the drill weekend on December 7th, 2025, Littoral Craft Company Delta successfully conducted a Pistol range.

​Both Marines from Headquarters and Service (H&S) and Littoral Craft Company (LCC) Delta were authorized to conduct Pistol Qualifications. Officers and Staff Noncommissioned Officers completed their annual Pistol requirement.

(U.S. Marine Corps Photos contributed by Sgt Luis Saldana)

Change of Command

On Dec 6, 2025, U.S. Marines assigned to 4th Assualt Amphibian Battalion participated in a Change of Command ceremony over drill weekend.

The change of command ceremony is a tradition that signifies the transfer of command and responsibility from one individual to another.

We also welcomed Brigadier General John K. Jarrard, 4th Marine Division Commanding General aboard the Lance Corporal Aviles Training Center.

We at 4th Assualt Amphibian Battalion welcome LtCol. Nishan Campbell as the new Battalion Commander.

LtCol. Theodore Martin, thank you for your service and dedication to the Marines of 4th AABN. Fair winds and following seas!