With the entry of the People's Liberation Army into Tibet, some Tibetan settlements in western Tibet, formerly controlled by the Bhutanese government, came under the control of the People's Republic of China. While some sources believe that the Bhutan-China border was settled in a secret agreement during 1961, neither country has ever publicly acknowledged such an agreement. In 1998, the two countries signed a peace and tranquility agreement, although border disputes remain. A 2002 official statement by the King of Bhutan to the National Assembly, specifies that there are still four disputed areas between Bhutan and China.
