Colonel Koch’s key assignments include: Chief of Staff, Defense Commissary Agency, Fort Lee; Commander, Division Support Command, 10^th Mountain Division, Fort Drum; Chief Logistics Branch, F-4, Joint Chief of Staff; Commander, 498^th Support Battalion, 2^nd Armored Division (Forward), Germany; and Deputy Chief of Staff, 101^st Airborne Division (Air Assault), Ft Campbell, Kentucky. As the Commander, 498^th Support Battalion, he successfully provided personnel administration, supply and distribution, transportation, maintenance and health services in support of over 8,000 Soldiers. While serving as the Chief of Staff, Defense Commissary Agency, Colonel Koch successfully coordinated the actions of 14 corporate directors responsible for personnel administration, training, equal employment opportunity, financial management and information communications functions in support of Department of Defense commissary operations. While serving on the Joint Chief of Staff, he managed and coordinated transportation, food, clothing, fuel and water actions across all services.