evidence: For generations, Prasat Preah Vihear (called Khao Phra Wiharn by the Thais) has been a source of tension between Cambodia and Thailand. This area was ruled by Thailand for several centuries, but returned to Cambodia during the French protectorate, under the treaty of 1907. But sovereignty over the temple has been an issue ever since, with tensions between Cambodia and Thailand flaring up from time to time – most recently from 2008 to 2011, when armed confrontations around the temple claimed the lives of several dozen soldiers and some civilians on both sides.