Petty Officer 2nd Class Jason M. Turgeon (center), a 37-year-old preventative medical technician for Combat Logistics Battalion 31, 31st Marine Expeditionary Unit, and a native of Memphis, Tenn., and Petty Officer 3rd Class Jacob J. Hanson, a 22-year-old corpsman with CLB-31, 31st MEU, and a native of Gold Beach, Oreg., assess a Marine’s vital signs during Exercise Koolendong 13 here, Sept. 4. The doctors and corpsmen of the 31st MEU’s logistics combat element and command element operate multiple aid stations to maintain the health of more than 250 Marines and Sailors training in the area. Koolendong demonstrates the operational reach of the 31st MEU and reinforces why it is the Marine Corps' force in readiness for the Asia-Pacific region. Also participating in the exercise is the Marine Rotational Force – Darwin and soldiers of the 5th Royal Australian Regiment. The 31st MEU brings what it needs to sustain itself to accomplish the mission or to pave the way for follow-on forces.