Royal New Zealand Air Force Sgt. Ben Fraser, left, a helicopter crewman with the Helicopter Transition Unit, briefs U.S. Marines on safety procedures for an NH90 helicopter in preparation for exercise Southern Katipo 2013 at the Linton Military Camp in Linton, New Zealand, Nov. 4, 2013. Southern Katipo is a New Zealand-led exercise focusing on amphibious operations in conjunction with several partner nations.