5th ANGLICO Commanding Officer
Lieutenant Colonel Grimmett is a native of Swansboro, North Carolina and graduated from Gardner Webb University in 1996. He was commissioned in March of 2002 and, upon completion of The Basic School and Field Artillery Officer Basic Course in 2004, he reported to 2d Battalion, 10th Marine Regiment.
Upon joining 2d Battalion, 10th Marine Regiment, Lieutenant Grimmett was assigned to Battery G where he served as Guns Platoon Commander and Forward Observer. In 2004, he deployed to Afghanistan with Battalion Landing Team (BLT) 1/6 as part of the 22d Marine Expeditionary Unit (MEU) in support of Operation ENDURING FREEDOM. Upon his return from deployment, he assumed the duties of Battery G Fire Direction Officer and Liaison Officer. In November 2005 he deployed to Hit, Iraq with BLT 1/2 as part of the 22d MEU in support of Operation IRAQI FREEDOM.
In July 2006, Lieutenant Grimmett reported to 5th ANGLICO where he served as Fire Power Control Team Leader and Supporting Arms Liaison Team OIC. In 2007, Captain Grimmett deployed as a Fire Power Control Team (FCT) Leader to Al Anbar, Iraq in support of Operation IRAQI FREEDOM. During this deployment, he supported Task Force 1-77 of the 3d Brigade Infantry Combat Team and 2d Battalion, 5th Marine Regiment in Ar Ramadi. In 2008, Captain Grimmett again deployed with 5th ANGLICO as a Fire Power Control Team (FCT) Leader to Al Anbar province, in support of Operation IRAQI FREEDOM. During this deployment he supported the 3d Battalion, 29th Brigade of the 7th Division, Iraqi Army in Korean Village and Ar Rutbah. In 2009, at the completion of his tour with 5th ANGLICO, Captain Grimmett was selected to attend Expeditionary Warfare School in Quantico, Virginia.
Upon the completion of Expeditionary Warfare School, Captain Grimmett received orders to 5th Battalion, 11th Marine Regiment where he assumed command of Headquarters Battery in September 2010. Subsequently, he assumed command of Battery T and deployed in January of 2012 to Afghanistan in support of Operation ENDURING FREEDOM. In October 2012, following his redeployment, Major Grimmett was tapped to perform the duties of the Operations Officer for 5th Battalion, 11th Marine Regiment.
In 2013 Major Grimmett attended Command and Staff College in Quantico, Virginia where he earned his Master’s Degree in Military Studies. At the conclusion of Command and Staff College, Major Grimmett received orders to Naval Sea Systems Command (NAVSEA) at the Naval Yard in Washington DC where he was assigned to Principle Executive Office (PEO), Ships, Project Manager Ships (PMS) 385 as a Marine Corps Liaison and Operational Test and Evaluation Project Officer. During his time with PMS 385 he led operational testing and evaluations for the Expeditionary Fast Transport (EPF), Expeditionary Transfer Dock (ESD), and Expeditionary Sea Base (ESB) principle ship construction projects.
In July 2016, Major Grimmett reported to 12th Marine Regiment and filled the role of Assistant Operations Officer. Following his initial assignment, he reported to 3d Battalion, 12th Marine Regiment in November 2016 where he assumed the duties of Operations Officer. In May 2017, Major Grimmett reported back to Headquarters Battery, 12th Marine Regiment and assumed the duties of the 3d Marine Division Assistant Fire Support Coordinator. In 2018, he was assigned to serve as the Regimental Logistics Officer were he concluded his time with 12th Marines.
His personal awards include the Meritorious Service Medal, Navy and Marine Corps Commendation Medal with one gold star, Navy and Marine Corps Achievement Medal with two gold stars and combat distinguishing device, and the Combat Action Ribbon with one gold star. He is married to the former Kay Een of Waikele, Hawaii and have two children: Kenji (8) and Cora (4).