TONGA ARRIVAL U.S. Ambassador to Tonga C. Steven McGann and Brig. Gen. Tau'aika "Dave" Uta'atu, Tonga's chief of defense, greet U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, upon his arrival in Tonga, Nov. 9, 2010. Mullen visited Tonga on the second stop of a Pacific tour to thank the Tongan people for their continuing dedication and support in sending troops to Iraq and Afghanistan. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 340635-R-DRV68-988.jpg Photo Gallery