Hans-Dietrich Genscher

Hans-Dietrich Genscher (born 21 March 1927) is a German politician of the liberal Free Democratic Party (FDP). He served as Foreign Minister and Vice Chancellor of Germany from 1974 to 1992 (except for a two-week break in 1982), making him the longest-tenured holder of either post. In 1991, he was the chairman of the Organization for Security and Co-operation in Europe (OSCE).