U.S. Marine Corps Sgt. Alexander Koeneke, an explosive ordnance technician with Explosive Ordnance Company, 9th Engineer Support Battalion, 3rd Marine Logistics Group, practices Tactical Combat Causality Care on a simulated casualty during a TCCC course on Camp Hansen, Sept. 9, 2021. 9th ESB conducts TCCC classes to allow more Marines to become certified in combat lifesaving, a skill Lt. Col. Marcus Gillett, battalion commander of 9th ESB, plans for every Marine to have in the near future. 3rd MLG, based out of Okinawa, Japan, is a forward deployed combat unit that serves as III MEF’s comprehensive logistics and combat service support backbone for operations throughout the Indo-Pacific area of responsibility. - U.S. Marine Corps Sgt. Alexander Koeneke, an explosive ordnance technician with Explosive Ordnance Company, 9th Engineer Support Battalion, 3rd Marine Logistics Group, practices Tactical Combat Causality Care on a simulated casualty during a TCCC course on Camp Hansen, Sept. 9, 2021. 9th ESB conducts TCCC classes to allow more Marines to become certified in combat lifesaving, a skill Lt. Col. Marcus Gillett, battalion commander of 9th ESB, plans for every Marine to have in the near future. 3rd MLG, based out of Okinawa, Japan, is a forward deployed combat unit that serves as III MEF’s comprehensive logistics and combat service support backbone for operations throughout the Indo-Pacific area of responsibility.