A North Korean soldier smiles towards a passing Chinese tour boat as she guards the banks of the Yalu River near the North Korean town of Sinuiju, opposite the Chinese border city of Dandong, May 28, 2009. Key powers on the U.N. Security Council have agreed in principle that North Korea must face sanctions for defying a U.N. resolution with its second nuclear on Monday, Western diplomats said. REUTERS/Jason Lee (NORTH KOREA POLITICS MILITARY)