Brigadier General Donahue was commissioned as a second lieutenant in the Infantry Branch in 1992 from the United States Military Academy at West Point. He has commanded at every echelon from company to brigade. Brigadier General Donahue served as a platoon leader in Korea, Fort Polk, Louisiana and the 3rd Battalion, 75th Ranger Regiment at Fort Benning, Georgia. Following promotion to captain, he served as a rifle company commander in 5th Battalion, 87th Infantry in Camp Kobbe, Panama. He then served as an assistant operations officer, rifle company, and headquarters company commander in 2nd Battalion, 75th Ranger Regiment. Brigadier General Donahue subsequently moved to Washington, D.C. and served as Special Assistant to the Chairman of the Joint Chiefs of Staff. Following his time at the Pentagon, he served as assistant operations officer, squadron operations officer, squadron executive officer, troop commander, selection and training detachment commander, operations officer, squadron commander, and deputy brigade commander (support) within US Army Special Operations Command (USASOC) in Fort Bragg, North Carolina. After attending Harvard University as a US Army War College Fellow, he returned to Fort Bragg and commanded a brigade within USASOC. He was then assigned as the Director of Operations for the US Joint Special Operations Command (JSOC). His most recent assignment was deputy commanding general (maneuver) of the 4th Infantry Division and Fort Carson where he deployed in support of Operation Atlantic Resolve. He has deployed 16 times in support of operations in Afghanistan, Iraq, Syria, North Africa, and Eastern Europe.
His military education includes the Infantry Officer Basic and Advanced Courses, the Naval War College, and the US Army War College Fellowship at Harvard University.
Brigadier General Donahue’s awards and decorations include: Defense Superior Service Medal, Legion of Merit, Bronze Star Medal (two with “V” device, four Oak Leaf Clusters), Defense Meritorious Service Medal, Meritorious Service Medal (with Oak Leaf Clusters), Joint Service Commendation Medal (with Oak Leaf Cluster), Army Commendation Medal (with two Oak Leaf Clusters), Army Achievement Medal, Combat Infantryman Badge, Expert Infantryman Badge, Master Parachutist Badge, Military Freefall Parachutist Badge and Ranger Tab.