Brig. Gen. Roger R. Machut, the commanding general of 4th Marine Logistics Group, and Sgt. Maj. Richard Lewallen, the 4th MLG sergeant major, unload medical supplies from a National Guard UH-60 Black Hawk helicopter here, April 15. Machut flew aboard the Black Hawk to observe the unloading process in Deering and jumped in to help the service members in an austere Arctic environment. IRT Arctic Care is a multi-service humanitarian and training program focusing on enhancing the interoperability and capacity of U.S. forces in peacetime support operations, humanitarian assistance and disaster relief. The exercise is primarily a Reserve effort with Marine Forces Reserve taking the lead and receiving logistical and medical support from the National Guard, Army Reserve, Navy Reserve and Air Force Reserve.