Marines


Biography

 

Lieutenant Colonel Justin D. Davis
INSPECTOR-INSTRUCTOR
4TH ASSAULT AMPHIBIAN BATTALION

Lieutenant Colonel Davis is a native of Sydney, Australia. He attended University of Washington and Arizona State University prior to attending Officer Candidate School (OCS) in May 2007. Upon completion, he was commissioned as a Second Lieutenant and assigned as an Officer Selection Officer assistant at Recruiting Station Phoenix, AZ until he attended The Basic School in March 2008. In November, 2008 he completed The Basic School and was assigned to 2d Assault Amphibian Battalion (2d AABn). He subsequently completed Assault Amphibian Officer course in June, 2009 and was assigned the Assault Amphibian Officer Military Occupational Specialty. 

While assigned to 2d AABn he completed assignment as Company A, 1st and 3d Platoon Commander before assignment as Company C, 2d Platoon Commander. In this billet he executed a provisional infantry role in support of Operation ENDURING FREEDOM. Upon return he was assigned as the Company B, Executive Officer until he was assigned as Commanding Officer, Company E. During this assignment he completed non-resident education through the Expeditionary Warfare School.

In June 2011, Captain Davis was assigned to the Assault Amphibian School where he executed duties as the Training and Instructor Company Commander. In this capacity he oversaw all entry and intermediate-level training for all Assault Amphibian Marines while also serving as lead instructor for the Assault Amphibian Officer and Unit Leader courses. During this assignment he completed non-resident education through the Command and Staff College.

In July 2014, Captain Davis attended resident Expeditionary Warfare School and graduated as a distinguished graduate in May 2015. Upon graduation, Captain Davis was assigned to 2d AABn whereby he commanded Company A and fulfilled duties as the Battalion Logistics Officer. During this tour he executed a deployment in support of Operation INHERENT RESOLVE as a targeting officer for the Combined Joint Operations Center – Baghdad. 

In July 2017, Major Davis attended resident Command and Staff College and graduated as a distinguished graduate and received a Master’s in Military Studies. Upon graduation he was assigned as the Deputy Director for the Amphibious Vehicle Test Branch. In July 2020, Major Davis was assigned to 3d Assault Amphibian Battalion where he is served as the Operation Officer until August 2022. In August 2022, Major Davis was assigned to the 1st Marine Division G-3 where he served as the Training Officer Future Operations Officer and was promoted to his current rank; during this time he completed a Master’s Degree in International Relations via the University of California – San Diego. In July, 2024, Lieutenant Colonel Davis was assigned as the Inspector-Instructor, 4th Assault Amphibian Battalion, 4th Marine Division.

Lieutenant Colonel Davis’ awards include the Defense Meritorious Service Medal, the Meritorious Service Medal with two Gold Stars in lieu of third award, the Navy and Marine Corps Commendation Medal with combat distinguishing device and gold star in lieu of second award, the Navy Achievement Medal, the Combat Action Ribbon and the Outstanding Volunteer Service Medal.