Hospital corpsmen lift a simulated casualty into M997 ambulance during a casualty evacuation drill at Marine Corps Air Station Futenma, Okinawa, Japan Dec. 8, 2015. The casevac course is two weeks long and gives the students a better understanding of what it means to be a corpsman. The corpsmen are with various units with III Marine Expeditionary Force. - Hospital corpsmen lift a simulated casualty into M997 ambulance during a casualty evacuation drill at Marine Corps Air Station Futenma, Okinawa, Japan Dec. 8, 2015. The casevac course is two weeks long and gives the students a better understanding of what it means to be a corpsman. The corpsmen are with various units with III Marine Expeditionary Force.

A landing craft air cushion-class hovercraft approaches Kin Blue, Okinawa, Japan, for a beach landing exercise, Oct. 27, 2015, during Blue Chromite 2016. Blue Chromite is a large-scale, cost effective on-island training event lead by 4th Marine Regiment, 3rd Marine division, III Marine Expeditionary Force. - A landing craft air cushion-class hovercraft approaches Kin Blue, Okinawa, Japan, for a beach landing exercise, Oct. 27, 2015, during Blue Chromite 2016. Blue Chromite is a large-scale, cost effective on-island training event lead by 4th Marine Regiment, 3rd Marine division, III Marine Expeditionary Force.