US President Barack Obama (L) and Thai Prime Minister Yingluck Shinawatra (R) listen to national anthem during a welcome ceremony at Government House in Bangkok, Thailand, 18 November 2012. Obama is visit Thailand to mark 180 years of diplomatic relations between the two countries as part of his South-East Asia trip include stops in Cambodia and Myanmar. The two leaders were expected to announce Thailand's intention to joining the US-led Trans-Pacific Partnership (TPP). [Photo: CFP]