Colonel Lozar was commissioned a Second Lieutenant in May of 2001. After completing the Basic School and Logistics Officers Course, he held billets as a Motor Transport Platoon Commander, Support Company and Landing Support Platoon Commander, Landing Support Company, 1st Transportation Support Battalion.
In February of 2003 Second Lieutenant Lozar was assigned as the Motor Transport Officer, Combat Service Support Battalion 10 during the invasion of Iraq. He was promoted to First Lieutenant in May 2003 and assigned as the Motor Transport Detachment Commander, Combat Service Support Company 101 during Phase IV stability operations in Iraq.
Upon return from Iraq, First Lieutenant Lozar was assigned as the Officer in Charge, Beach Operations Control Group, Kuwait Naval Base for the redeployment of U.S. Forces to Iraq. Upon his return in March, 2004 he was assigned as the Air Delivery Platoon Commander, 1st Landing Support Company.
In November 2005, First Lieutenant Lozar was assigned as the S-4 Officer, Marine Tactical Air Command Squadron 18, Okinawa, Japan. He was promoted to Captain in December of 2005.
From 2008 to 2011 Captain Lozar attended Expeditionary Warfare School, served as an academics instructor at Officer Candidate School, a capabilities integration officer at the Logistics Integration Division under the Deputy Commandant for Combat Development and Integration, and the Aide de Camp to the Deputy Commanding General, Marine Corps Combat Development Command.
In July 2011 Captain Lozar served as the Logistics Plans Officer, G-4, 1st Marine Division during Operation ENDURING FREEDOM 12.1. He was promoted to Major in April of 2012. Upon his return from Afghanistan, he was assigned as the S-4 Officer, Headquarters Battalion, 1st Marine Division.
In July 2014 he attended Army Command and General Staff College, Fort Leavenworth, Kansas. He was then assigned as the Aviation Logistics Strategy and Plans Officer and Innovation Lead, Department of Aviation, Headquarters Marine Corps.
In July 2018, he was assigned as the Executive Officer, Combat Logistics Regiment 1. He was promoted to Lieutenant Colonel in August of 2018.
He commanded Marine Wing Support Squadron 371 from 6 December 2019 to 8 June 2021. Following command he attended The Eisenhower School, National Defense University. He was then assigned to Joint Staff, J-33. He was promoted to his current rank in September 2023.
His previous billet was the Assistant Chief Staff, G-3 for 1st Marine Logistics Group, I Marine Expeditionary Force.
Colonel Lozar holds a Bachelor of Arts in Chemistry from Virginia Tech, a Master of Arts in Leadership from the University of Oklahoma, a Master of Military Art and Science from Army Command and General Staff College, and a Master of National Resource Strategy from The Eisenhower School, National Defense University.