He then served as a secretary of state at the Ministry of Post and Telecommunications and from 1974 as Minister of Transport (until 1980) and Post and Telecommunications (until 1982) under Helmut Schmidt in the latter's three terms as Federal Chancellor.
He served as a secretary of state at the Ministry of Post and Telecommunications, and from 1974 as Minister of Transport (until 1980) and Post and Telecommunications (until 1982) under Helmut Schmidt's three terms as Federal Chancellor.