U.S. Army soldiers assigned to 2nd Battalion, 23rd Infantry Regiment, 4th Brigade, 2nd Infantry Division, Bravo Company, from Joint Base Lewis-McChord, take part in improvised explosive device training during Talisman Sabre 2011. The training course is designed to familiarize soldiers with the devices and components that are being used against military personnel in the global war on terrorism. Talisman Sabre promotes the alliance with Australia, which is one of the United States' most important defense relationships and a central pillar for national security strategy, based on shared values and a common commitment to peace and security.