Birth mothers in South Korea (international adoption) refers to the group of biological mothers whose children were placed for adoption in South Korea's international adoption practice. The decades-long phenomenon of international adoption in South Korea began after the Korean War. In the years since the war, South Korea has become the largest and longest provider of children placed for international adoption, with 165,944 recorded Korean adoptees living in 14 countries, primarily in North America and Western Europe, as of 2014.