Lance Cpl. Anthoney J. Robinson, a vehicle commander with Weapons Company, Battalion Landing Team 2nd Battalion, 7th Marines, 31st Marine Expeditionary Unit, instructs Australian soldier Lance Cpl. Amy Easthan, a motor transportation operator with Combat Service Support Battalion, on how to fire the Mk-19 automatic grenade launcher, July 28. Marines and Australians were participating in a bilateral live-fire training exercise during exercise Talisman Sabre 2011. TS11 is the largest joint military exercise undertaken by the Australian Defence Force. Around 14,000 U.S. and 9,000 Australian personnel have participated. TS11 provides an opportunity to conduct operations in a combined and joint environment that will increase both countries’ bilateral war-fighting capabilities to respond to crisis and to provide humanitarian assistance. The 31st MEU is the only continuously forward-deployed MEU and remains the nation’s force in readiness in the Asia-Pacific region.