The Cambodian–Thai border dispute Quarreling began Process_start in June 2008 as the latest round of a century-long dispute Quarreling between Cambodia and Thailand involving the area surrounding Surrounding the 11th century Preah Vihear Temple , in the Dângrêk Mountains between the Choam Khsant district in the Preah Vihear Province of northern Cambodia and the Kantharalak district ( `` amphoe '' ) in Sisaket Province of northeastern Thailand .