Laos is a landlocked country located in Southeast Asia, bordered by Thailand, Cambodia, Vietnam, and China. It is the only country in the world that is completely within the Mekong River basin. The capital of Laos is Vientiane, and the country is known for its mountainous terrain and lush forests. The term 'LAND ON THE MEKONG' refers to Laos, which is situated on the banks of the Mekong River.