Player Embed Code: Download Embed Share MCAS Iwakuni Marines Stay Hydrated for Force Fitness Class (Package/Pkg) III MEF Aug. 1, 2018 | 1:43 Heat illnesses during training directly influence the readiness of service members on Marine Corps Air Station Iwakuni. Lance Cpl. Cheyeanne Alvarez grabbed a hydration source and headed to the IronWorks Gym to see how hydration is key to preventing heat injuries. This video story includes soundbites from Sgt. Mark Miller, Los Angeles, California and Petty Officer 2nd Class Lorenz Gabriel. This story is available in high definition.