Sakon Nakhon is a town in Thailand within the Isan region, and capital city of the Sakon Nakhon Province, with a population of approximately 76,000. It has a regional airport in the north, Sakon Nakhon Airport. During World War II, the town became a haven for Free Thais, and a base for Communist activities in the late 1950s. Fish and rice are two of the largest products of the region. The biggest lake of north-east Thailand is situated north of the city, known as Lake Nong Han.