Royal Thai Air Force personnel load food and relief supplies from Thailand's Crown Prince Maha Vajiralongkorn and his Royal Consort Princess Srirasmi to be sent to victims of Typhoon Haiyan in the Philippines, at the military airport in Bangkok November 18, 2013. The Philippines is facing up to an enormous rebuilding task from Typhoon Haiyan, which killed at least 3,974 people and left 1,186 missing, with many isolated communities yet to receive significant aid despite a massive international relief effort. REUTERS/Chaiwat Subprasom (THAILAND - Tags: DISASTER ENVIRONMENT SOCIETY POLITICS TRANSPORT MILITARY) 

Royal Thai Air Force personnel load food and relief supplies from Thailand's Crown Prince Maha Vajiralongkorn and his Royal Consort Princess Srirasmi to be sent to victims of Typhoon Haiyan in the Philippines, at the military airport in Bangkok November 18, 2013. The Philippines is facing up to an enormous rebuilding task from Typhoon Haiyan, which killed at least 3,974 people and left 1,186 missing, with many isolated communities yet to receive significant aid despite a massive international relief effort. REUTERS/Chaiwat Subprasom (THAILAND - Tags: DISASTER ENVIRONMENT SOCIETY POLITICS MILITARY TRANSPORT) 

Royal Thai Air Force personnel use a forklift to load food and relief supplies from Thailand's Crown Prince Maha Vajiralongkorn and his Royal Consort Princess Srirasmi for victims of Typhoon Haiyan in the Philippines, at the military airport in Bangkok November 18, 2013. The Philippines is facing up to an enormous rebuilding task from Typhoon Haiyan, which killed at least 3,974 people and left 1,186 missing, with many isolated communities yet to receive significant aid despite a massive international relief effort. REUTERS/Chaiwat Subprasom (THAILAND - Tags: DISASTER ENVIRONMENT SOCIETY POLITICS MILITARY TRANSPORT) 

Royal Thai Air Force personnel load food and relief supplies from Thailand's Crown Prince Maha Vajiralongkorn and his Royal Consort Princess Srirasmi to be sent to victims of Typhoon Haiyan in the Philippines, at the military airport in Bangkok November 18, 2013. The Philippines is facing up to an enormous rebuilding task from Typhoon Haiyan, which killed at least 3,974 people and left 1,186 missing, with many isolated communities yet to receive significant aid despite a massive international relief effort. REUTERS/Chaiwat Subprasom (THAILAND - Tags: DISASTER ENVIRONMENT SOCIETY POLITICS MILITARY TRANSPORT) 

Royal Thai Air Force personnel load food and relief supplies from Thailand's Crown Prince Maha Vajiralongkorn and his Royal Consort Princess Srirasmi to be sent to victims of Typhoon Haiyan in the Philippines, at the military airport in Bangkok November 18, 2013. The Philippines is facing up to an enormous rebuilding task from Typhoon Haiyan, which killed at least 3,974 people and left 1,186 missing, with many isolated communities yet to receive significant aid despite a massive international relief effort. REUTERS/Chaiwat Subprasom (THAILAND - Tags: DISASTER ENVIRONMENT SOCIETY POLITICS MILITARY TRANSPORT) 

Royal Thai Air Force personnel load food and relief supplies from Thailand's Crown Prince Maha Vajiralongkorn and his Royal Consort Princess Srirasmi for the victims of Typhoon Haiyan in the Philippines, at the military airport in Bangkok November 18, 2013. The Philippines is facing up to an enormous rebuilding task from Typhoon Haiyan, which killed at least 3,974 people and left 1,186 missing, with many isolated communities yet to receive significant aid despite a massive international relief effort. REUTERS/Chaiwat Subprasom (THAILAND - Tags: POLITICS DISASTER ENVIRONMENT SOCIETY TRANSPORT MILITARY) 

Chavalit Chookajorn, a Thai official dressed in a traditional costume, greets Thailand's Crown Prince Maha Vajiralongkorn (L) and Royal Consort Princess Srirasmi during an annual royal ploughing ceremony in Bangkok May 13, 2013. The ancient ploughing ceremony in Buddhist Thailand, overseen by Vajiralongkorn, marks the end of the dry season and is meant to herald an auspicious start for the rice-planting season for one of the world's biggest rice exporters. REUTERS/Chaiwat Subprasom (THAILAND - Tags: ROYALS AGRICULTURE SOCIETY) 

Thai Crown Prince Maha Vajiralongkorn (L) is accompanied by royal consort Princess Srirasmi (R) as he presides over the Royal Barge Procession on the Chao Phraya River in Bangkok November 9, 2012. Golden barges shaped like swans and mythical sea creatures glided down the Chao Phraya river that winds through the Thai capital of Bangkok on Friday in a 700-year-old ceremony, with more than 2,000 rowers taking part. The Royal Barge Procession, held for the first time in five years and presided over by Vajiralongkorn, emphasizes the importance of water to the people of Thailand. REUTERS/Sukree Sukplang (THAILAND - Tags: POLITICS ROYALS ENTERTAINMENT RELIGION) 

Yukol Limlamthong, a Thai official dressed in traditional costume, greets Thailand's Crown Prince Maha Vajiralongkorn (L) and Royal Consort Princess Srirasmi during an annual royal ploughing ceremony in Bangkok May 13, 2010. Sacred Thai oxen predicted good fortunes for the coming year on Thursday with abundant rains and healthy crops, in stark contrast to other forecasts calling for crops to shrink during a ravaging drought. The ancient ploughing ceremony in Buddhist Thailand, overseen by Crown Prince Maha Vajiralongkorn, marks the end of the dry season and is meant to herald an auspicious start for the rice-planting season for the world biggest rice exporter. In the ceremony, the oxen ploughed a symbolic furrow in the dusty ground then tucked into banana-leaf platters, signifying a bountiful harvest. REUTERS/Chaiwat Subprasom (THAILAND - Tags: SOCIETY AGRICULTURE ROYALS) 

Thailand's Crown Prince Maha Vajiralongkorn arrives to Siriraj Hospital to mark revered Thai King Bhumibol Adulyadej's coronation anniversary in Bangkok May 5, 2010. Along side the crown prince is Royal Consort Princess Srirasmi (L) and Princess Bajrakitiyabha. REUTERS/Sukree Sukplang (THAILAND) 

Thailand's Crown Prince Maha Vajiralongkorn escorts Queen Sirikit out of Siriraj Hospital to mark revered Thai King Bhumibol Adulyadej's coronation anniversary at the Grand Palace in Bangkok May 5, 2010. Following Queen Sirikit is (L-R) Royal Consort Princess Srirasmi, Princess Ubol Ratana and Princess Maha Chakri Sirindhorn. REUTERS/Sukree Sukplang (THAILAND) 

Royal Consort Princess Srirasmi (L) and Princess Sirivannavari Nariratana take part in the pre-funeral ceremony for Thai King Bhumibol Adulyadej's late sister Princess Galyani Vadhana in Bangkok October 20, 2008. Hundreds of thousands of Thais are expected to take part in Princess Galyani's cremation ceremony, scheduled from November 14-19. REUTERS/Adrees Latif (THAILAND) 

Jaranthada Kanasutr, a Thai official dressed in traditional costume, greets Thailand's Crown Prince Maha Vajiralongkorn (L) and Royal Consort Princess Srirasmi during an annual royal ploughing ceremony in Bangkok May 9, 2008. The ancient ploughing ceremony in Buddhist Thailand marks the end of the dry season and is meant to herald an auspicious start for the rice-planting season in a region where many still depend on agriculture. REUTERS/Chaiwat Subprasom (THAILAND) 

Thailand's Crown Prince Maha Vajiralongkorn (L) and Royal Consort Princess Srirasmi watch the royal ploughing ceremony in Bangkok May 9, 2008. The ancient ploughing ceremony in Buddhist Thailand marks the end of the dry season and is meant to herald an auspicious start for the rice-planting season in a region where many still depend on agriculture. REUTERS/Chaiwat Subprasom (THAILAND) 

Thailand's Crown Prince Maha Vajiralongkorn (2nd L) and Royal Consort Princess Srirasmi (L) talk to Morocco's Princess Lalla Salma at the military airport in Bangkok June 14, 2006. 

Thailand's Crown Prince Maha Vajiralongkorn (R) stands with Royal Consort Princess Srirasmi after greeting foreign royalty in Bangkok June 11, 2006. Royalty and heads of state from 25 countries started to converge on Bangkok on Sunday to honour the Diamond Jubilee of Thailand's King Bhumibol Adulyadej, the world's longest-reigning monarch. REUTERS/Adrees Latif (THAILAND) 

Thailand's Crown Prince Maha Vajiralongkorn (2nd L) greets Malaysia's King Sirajuddin (R) as Queen Fauziah and Royal Consort Princess Srirasmi (L) look on at the Royal Military Airport in Bangkok June 11, 2006. REUTERS/Adrees Latif (THAILAND) 

Thailand's Crown Prince Maha Vajiralongkorn (R) walks with Royal Consort Princess Srirasmi after greeting foreign royalty in Bangkok June 11, 2006. Royalty and heads of state from 25 countries started to converge on Bangkok on Sunday to honour the Diamond Jubilee of Thailand's King Bhumibol Adulyadej, the world's longest-reigning monarch. REUTERS/Adrees Latif (THAILAND) 

Thailand's Crown Prince Maha Vajiralongkorn (R) walks with Royal Consort Princess Srirasmi after greeting foreign royalty in Bangkok June 11, 2006. Royalty and heads of state from 25 countries started to converge on Bangkok on Sunday to honour the Diamond Jubilee of Thailand's King Bhumibol Adulyadej, the world's longest-reigning monarch. REUTERS/Adrees Latif (THAILAND)