High Quality Content by WIKIPEDIA articles! British-Chinese relations, also known as Sino-British relations and Anglo-Chinese relations, refers to the interstate relations between China and the United Kingdom. Although on opposing sides of the Cold War, both countries were allies during World War II, and are members of the UN. Because of the Cold War, First and Second Opium War, and the status of Hong Kong, and other issues, China-UK relations at some points in history have been complicated, but better at other times.