CHINESE INFANTRY U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, tours the Chinese People's Liberation Army 1st Amphibious Mechanized Infantry Division during a visit to the unit in China, July 12, 2011. Mullen is on a three-day trip to the country to meet with counterparts and Chinese leaders. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 160431-H-DQM69-877.jpg Photo Gallery