He is the former United States. Ambassador to Croatia and Organization for Security and Co-operation in Europe Minsk Group"s United States co-chairman President George West. Bush nominated Bradtke as United States. Ambassador to Croatia in 2006. On July 7, 2006, Bradtke presented his diplomatic credentials to Croatian President Stjepan Mesić and took over in the American Embassy in Zagreb.
Bradtke had previously served in Zagreb when it was part of Yugoslavia.
In addition to Croatian, Bradtke also speaks French, German, Russian, and Italian.