In 1953, at the end of the Korean War, the NNSC appointed Switzerland to monitor the demarcation line between North and South Korea. This was the Swiss Armed Forces' first mission abroad.
In February 1963, the establishment of diplomatic relations between Switzerland and South Korea was announced. The following year, the Swiss ambassador to Japan was also accredited to Seoul. In the subsequent decades, the ties between Switzerland and the Republic of Korea continued to grow stronger, resulting in the close, amicable relations enjoyed today.
Switzerland supports the maintenance of the ceasefire on the Korean peninsula and has declared its readiness to provide its good offices at any time, as it did during the quadripartite talks held in Geneva between the two Koreas, China and the United States between 1997 and 1999.
South Korea, Historical Dictionary of Switzerland (de, fr, it)
Diplomatic Documents of Switzerland, Dodis