Lyons served as battalion executive officer for the Division Support Command and also as the executive officer and Division Materiel Management Center Chief in the 1st Armored Division in Germany. Lyons was the Plans Officer for the J-4 United States Central Command. His battalion command was with the 703rd Main Support Battalion and he later served as the G-4 of the 3rd Infantry Division. He commanded the 82nd Airborne Division Support Command and later commanded the 82nd Sustainment Brigade. He served as the executive officer to the Commander, United States Army Materiel Command. He has served with the International Security Assistance Force (ISAF) as C/J-4. He was the Director, Logistics Operations, Readiness, Force Integration and Strategy at Headquarters, Department of the Army G-4.[2]
Lyons commanded of the 8th Theater Sustainment Command (TSC) at Schofield Barracks, Hawaii from 2012 to 2014. The 8th TSC is responsible for logistics and sustainment of the army in the Pacific. The command spans 9,000 miles and controls units providing supplies, maintenance, transport, engineer, personnel, and military police from Alaska to Korea.[3]
After serving as the Deputy Commanding General for United States Transportation Command at Scott Air Force Base, Illinois, Lyons was assigned as the Director for Logistics (J4) on the Joint Staff. In April 2018, Lyons was nominated for promotion to general and assignment as commander of United States Transportation Command.[5][6] He was confirmed by the United States Senate and took command of United States Transportation Command on August 24, 2018. Lyons is the first ever non-Air Force officer to lead Transportation Command.
His retirement ceremony was held on October 15, 2021, with the retirement effective November 30, 2021.[7][8]
Post-military career
On May 27, 2022, the White House and the U.S. Department of Transportation announced that Retired General Lyons, would be the new Port and Supply Chain Envoy to the Biden-Harris Administration's Supply Chain Disruptions Task Force, taking over the role from John Porcari. In this role, Lyons is responsible for working with ports, rail, trucking and other private companies across the transportation logistics supply chain to address bottlenecks, speed up the movement of goods, and help lower costs.[9][10]