Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Vietnam Gets Double Dose of US Waterway Diplomacy Ha Nguyen HO CHI MINH CITY - Vietnam got a double dose of waterway diplomacy from the United States last week. In the north, in Hanoi, U.S. Defense Secretary Mark Esper announced Wednesday his nation would provide Vietnam with a second coast guard cutter ship to use in the South China Sea, where it has a dispute with China. .