Adm. Mike Mullen thanks audience members after being presented the Officer of the Order of Australia. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen thanks audience members after being presented the Officer of the Order of Australia in Melbourne, Australia, on Nov. 7, 2010. Mullen is visiting Australia participating in the annual U.S.-Australia defense ministerials with Secretary of Defense Robert M. Gates and Secretary of State Hillary Rodham Clinton. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 112804-H-EXC97-734.jpg Photo Gallery