Thailand, historically known as Siam and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the center of the Indochinese Peninsula, spanning 513,120 square kilometers (198,120 sq mi), with a population of almost 70 million. The country is bordered to the north by Myanmar and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the west by the Andaman Sea and the extremity of Myanmar. Thailand also shares maritime borders with Vietnam to the southeast, and Indonesia and India to the southwest. Bangkok is the nation's capital and largest city.