Government officials and former United States envoys gathered in Phnom Penh yesterday for a symposium marking the 60th anniversary of bilateral relations. The two-day event, opened by Deputy Prime Minister Sok An and US Ambassador Carol Rodley, was attended by former US ambassadors Kent Wiedemann, who served from 1999 to 2002, Charles Ray (2002-2005) and Joseph Mussomeli (2005-2008). Other speakers included historians David Chandler and Kenton Clymer, as well as Khmer language expert Franklin Huffman and Ek Sereywath, a former Cambodian ambassador to Washington.