 Complete the following phrase:  As defender he debuted for West Germany in a friendly at Wales in October 1976. His career for his country was in best prime in 1978 and 1979, years where he won the vast majority of his altogether 14 caps. In 1979, he even found the net, scoring vital goals in 1980 UEFA European Championship qualifiers against Wales and Turkey. These goals brought him a call-up to the 