Photo taken December 2, 2008 shows Thai King Bhumibol Adulyadej (R) sitting next to Queen Sirikit (unseen) during a review of the honor guard as a part of the celebration to commemorate his 81th birthday at the Royal Plaza in Bangkok. Thailand's revered King Bhumibol Adulyadej is "mildly" sick and cannot deliver his annual birthday-eve speech, the crown prince said on December 4. "His Majesty the King is mildly sick," Crown Prince Maha Vajiralongkorn said on national radio. Getty Images logo Getty Images 12 months ago

Photo taken December 2, 2008 shows Thai King Bhumibol Adulyadej (R) sitting next to Queen Sirikit (unseen) during a review of the honor guard as a part of the celebration to commemorate his 81th birthday at the Royal Plaza in Bangkok. Thailand's revered King Bhumibol Adulyadej is "mildly" sick and cannot deliver his annual birthday-eve speech, the crown prince said on December 4. "His Majesty the King is mildly sick," Crown Prince Maha Vajiralongkorn said on national radio.