Cambodia's Prince Norodom Sihanouk, left, talks to France's then foreign affairs minister Roland Dumas during the Cambodian Peace Conference in Paris. AFP
A general view of the Cambodian Peace Conference in Paris in 1991 AFP
Then UN secretary general Javier Perez de Cuellar, front left, Cambodia's Prince Norodom Sihanouk, front second left, and then Philippines' foreign secretary Raul Manglapus, front , centre, with other delegates to the Cambodian Peace Conference in Paris in 1991 AFP
(FILES) In this file photo taken on October 23, 1991, (from L to R) Khmer Rouge factions leaders Im Chuun Lin, Cambodia's Premier Hun Sen, Dith Munty, Cambodia's Prince Norodom Sihanouk, Ieng Mouly and Khieu Samphan applaud after signing the peace treaty, which ended decades of civil war in Cambodia, in Paris. - Three decades after a landmark agreement ended years of bloody violence in Cambodia, its strongman ruler has crushed all opposition and is eyeing dynastic succession, shattering hopes for a democratic future. (Photo by Eric Feferberg / AFP)
Cambodia's Prince Norodom Sihanouk signs the agreement during the Cambodia Peace Conference in Paris. AFP
Cambodian Prime Minister Hun Sen signs the peace treaty, ending 21 years of civil war in Cambodia, in Paris. AFP
Cambodia's Prince Norodom Sihanouk, left, talks to France's then foreign affairs minister Roland Dumas during the Cambodian Peace Conference in Paris. AFP
A general view of the Cambodian Peace Conference in Paris in 1991 AFP
Then UN secretary general Javier Perez de Cuellar, front left, Cambodia's Prince Norodom Sihanouk, front second left, and then Philippines' foreign secretary Raul Manglapus, front , centre, with other delegates to the Cambodian Peace Conference in Paris in 1991 AFP
(FILES) In this file photo taken on October 23, 1991, (from L to R) Khmer Rouge factions leaders Im Chuun Lin, Cambodia's Premier Hun Sen, Dith Munty, Cambodia's Prince Norodom Sihanouk, Ieng Mouly and Khieu Samphan applaud after signing the peace treaty, which ended decades of civil war in Cambodia, in Paris. - Three decades after a landmark agreement ended years of bloody violence in Cambodia, its strongman ruler has crushed all opposition and is eyeing dynastic succession, shattering hopes for a democratic future. (Photo by Eric Feferberg / AFP)
Cambodia's Prince Norodom Sihanouk signs the agreement during the Cambodia Peace Conference in Paris. AFP
Cambodian Prime Minister Hun Sen signs the peace treaty, ending 21 years of civil war in Cambodia, in Paris. AFP
Cambodia's Prince Norodom Sihanouk, left, talks to France's then foreign affairs minister Roland Dumas during the Cambodian Peace Conference in Paris. AFP