Tourism officials and business people from Cambodia, Vietnam and Laos were to open a three-day exhibition today to promote tourism to the three countries, Tourism Minister Thong Khon said this week. Hundreds of sector players are expected at the event, which is being held in Ho Chi Minh City and is aimed at promoting the three countries as a single tourism destination. "We are now practicing a three-in-one policy," Thong Khon told the Post, adding that travel from Vietnam and Laos has increased since Thailand's political troubles began last month. "We learned that Chinese, Korean, Japanese and other foreign tourists are coming to Cambodia via the Vietnam gateway." He added that Cambodia expected 2.3 million foreign tourist arrivals to the Kingdom this year and is targeting 3.2 millions in 2010.