India, March 25 -- It's been three months since a ceasefire ended bitter border fighting between Cambodia and Thailand, but signs of combat are cut deep in this 11th-century temple atop a 525-metre cliff in the Dangrek Mountain range.

The neighbouring Southeast Asian countries have been fighting over the Preah Vihear temple on and off for decades, and that's putting the ancient holy site in danger. Built by the same Khmer Empire that constructed Angkor Wat 160 kilometres southwest, the temple was declared a UNESCO World Heritage site in 2008 and are held as an important cultural relic by Cambodians.

But after two rounds of major combat last year, much of the structure is damaged and Cambodian officials say that parts of it may be in dan...