Foreigners in Korea

Following the partition of Korea in the aftermath of the Korean War, the percent of foreigners in South Korea has risen to 3.4%, or about two million of the total population (half of them Chinese, with Americans and Vietnamese tied for second place at around 150,000 or 6-7% of total).North Korea largely remains ethnically homogeneous with a small Chinese expatriate community and a few Japanese migrants.

King Gojong called foreigners "uneducated louts," motivated by "lechery and sensuality." The Joseon Dynasty was widely referred to as a "hermit kingdom" for sealing itself off from foreign influence. Joseon diplomacy mainly involved the Sadae ("serving the great") policy toward Imperial China. Concurrently maintained (and jointly referred to as "serving the great and relations with neighbor policy" Hangul: 사대교린 정책; Hanja: 事大交隣政策) was the Gyorin policy of amicable relations with neighbouring countries; however this did not result in significant influx of foreign persons but rather sporadic trade delegations and diplomatic missions: envoys from the Ryūkyū Kingdom were received by Taejo of Joseon in 1392, 1394 and 1397. Siam sent an envoy to Taejo's court in 1393.

The Joseon kingdom made every effort to maintain a friendly bilateral relationship with China for reasons having to do with both realpolitik and a more idealist Confucian worldview wherein China was seen as the center of a Confucian moral universe. In the fifth through tenth centuries, Arabs sailed the Indian Ocean, and Arab merchants and sailors eventually landed in Korea during the Silla dynasty. These contacts eventually broke off starting in the 15th century, resulting in the Arabs' eventual assimilation into the Korean population.

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