Lt. Cmrd. John Ladd, the rotary officer for IRT Arctic Care 18, provides a safety brief to service members supporting Innovative Readiness Training Arctic Care 2018 prior to boarding a U.S. Army UH-60 Black Hawk helicopter as they prepare for departure from the flight line, Kotzebue, Alaska, April 14, 2018. IRT Arctic Care 2018 is comprised of a joint and multi-national force providing medical, dental, optometry and veterinary care for underserved villages in the Maniilaq Service Area, April 16-24. (U.S. Marine Corps photo by Lance Cpl. Ricardo Davila)