Прэахвихеа
In 1975, following the fall of the Lon Nol regime on 17 April the Khmer Rouge entered the capital Phnom Penh. But the final area held by the ill-fated Khmer Republic in any form would be the Preah Vihear Temple in these mountains. Khmer National Armed Forces occupied the place in late-April that year. They held on for a few weeks until the hill where the temple stands was finally taken by the Khmer Rouge on 22 May.