Thailand's revered King Bhumibol Adulyadej attends the annual Trooping of the Colour in Bangkok's Royal Plaza December 2, 2007, a few days ahead of his 80th birthday. The Thai King, the world's longest reigning monarch, will turn 80-years-old on December 5. Sitting, in the front passenger seat, is Crown Prince Maha Vajiralongkorn. REUTERS/Chaiwat Subprasom (THAILAND)

Thai honor guard march during the trooping of the colors to honor King Bhumibol Adulyadej's birthday in Bangkok, Thailand Sunday, Dec. 2, 2007. The King will turn 80 on December 5, 2007. Bhumibol kicked off celebrations for his 80th birthday by calling for unity as the country heads into divisive elections later this month. (AP Photo/Apichart Weerawong)

An elephant painted in pink carrying the portrait of Thai King Bhumibol Adulyadej performs with performers prior to the trooping of the colors to honor the King's birthday in Bangkok, Thailand Sunday, Dec. 2, 2007. The king will turn 80 on December 5, 2007. (AP Photo/Apichart Weerawong)