Lieutenant Colonel Colombero is a native of California. He enlisted in the Marine Corps Reserves in 1992 and served as a Naval and Field Artillery Scout-Observer.
He graduated from Southern Oregon University with degree in English studies, and was commissioned as a Second Lieutenant in December of 1999.
During his first assignment at 2nd Battalion, 5th Marines, he served as a Platoon Commander and as a Special Purpose Force Platoon Commander for the 31st Maritime Expeditionary Unit (MEU) aboard the USS Essex. As a Rifle Company Executive Officer, he completed a combat tour in the Middle East.
While assigned to the School of Infantry (West), he served as a training Company Commander, Instructor Group Officer, and as a H&S Company Commander. During this time, he also deployed to the Middle East in support of combat requirements as a member of the I & II Marine Expeditionary Forces (MEFs).
After rejoining the reserves, he served as a Platoon Commander and Intelligence Officer at 4th Force Reconnaissance Company. Following a third deployment to the Middle East, he graduated from the Marine Corps Intelligence Officer’s Course (MIOC) and went on to serve in various intelligence capacities.
While serving as the Intelligence Planner for Marine Corps Forces, South (MARFORSOUTH), he mobilized to support the ongoing mission requirements for two separate Special Purpose Marine Air Ground Task Forces (SPMAGTFs). In 2017, he served in a joint forces capacity as the U.S. Liaison Team Officer in Charge – Romania, European Command (EUCOM).
Lieutenant Colonel Colombero is a graduate of the Marine Corps Command and Staff College (Distance Education). He holds a Master’s in Engineering Degree from the University of Alabama at Birmingham (UAB) and a Master's in Strategic Studies from the U.S. Army War College (Resident Program).