Sergeant Luis E. Herrera (left), a forward observer for Company G., Battalion Landing Team 2nd Battalion, 4th Marines, 31st Marine Expeditionary Unit, and a native of Chino Hills, Calif., works alongside Lance Bombardier Lolo Tuungafasi, a forward observer for 107 Battery, 4th Regiment, Royal Australian Artillery, and a native of Marrickville, Australia, to call in mortar fire during a four-day, live-fire exercise following the conclusion of Talisman Saber 13 here, July 31. The live-fire exercise included the coordination of fire-support assets from the 31st MEU; the USS Chung-Hoon, an Arleigh Burke-class AEGIS destroyer; the HMAS Perth III, an ANZAC Class frigate; and the Australian Army. The exercise provided effective and intense training to ensure U.S. and Australian forces are capable, interoperable, deployable on short notice and combat ready. The 31st MEU is the Marine Corps' force in readiness for the Asia Pacific region and the only continuously forward-deployed MEU.