Lieutenant Colonel Mainwaring (pronounced Mannering) received his commission from the United States Military Academy in 2007. After Officer Basic Course in Fort Leonard Wood Missouri, he reported to the 2nd Brigade Special Troops Battalion, 101st Airborne Division (Air Assault), at Fort Campbell, Kentucky in 2008. He immediately deployed to Iraq where he served as a platoon leader in downtown Baghdad. Upon return, he served as the Executive Officer of the 101st’s Air Assault School specializing in multiple methods of conveying personnel and equipment from aircraft to the ground.
In 2010, Lieutenant Colonel Mainwaring was selected to serve as the Aide-de-Camp to the commanding general of the Mississippi Valley Division. In this capacity, he responded to one of the largest floods to ever pass down the Mississippi River in the spring of 2011. Following this assignment, Lieutenant Colonel Mainwaring took command of 643rd Engineer Company, 84th Engineer Battalion in Schofield Barracks, Hawaii. During his command, he deployed his headquarters to Camp Covington, Guam where they managed small engineer teams simultaneously dispersed across seven countries in the South Pacific where they constructed over 20 projects. In each location, US Army engineers partnered with host nation engineer forces, improved infrastructure, and sponsored vocational training.
After command, Lieutenant Colonel Mainwaring attended graduate school at Stanford University where he studied sustainable construction and energy efficient building design. He applied this education to teaching Civil Engineering at the United States Military Academy from 2016-2019. Following Command and General Staff College in 2020 he joined the 7th Special Forces Group (Airborne) in Eglin Air Force Base, Florida as the Group Engineer.
LTC Mainwaring is an Army brat, but calls Dothan, Alabama home. His wife, Darcy, is also from Dothan and teaches elementary school. Together, they have two children: Calvin (9) and Emery (7). He holds a Bachelor of Science in Civil Engineering from the United States Military Academy as well as two Masters of Science from Stanford University (Civil Engineering and Management Science) from Stanford University. LTC Mainwaring is a graduate of the Engineer Officer Basic Course, the Aviation Captains Career Course, and the Army Command and General Staff College (CGSC).
LTC Mainwaring’s military awards and decorations include the Meritorious Service Medal (four awards), Army Commendation Medal (three awards), Army Achievement Medal, Iraq Campaign Medal, Ranger Tab, Airborne Badge, Pathfinder Badge, and Air Assault badge. He is PMP certified and a licensed Professional Engineer.