Helmut Schmidt, Valéry Giscard d'Estaing, Henry Kissinger and Egon Bahr

Helmut Schmidt (Former Federal Chancellor of the Federal Republic of Germany; Editor, Die Zeit), Valéry Giscard d'Estaing (Former President, French Republic), Henry Kissinger (Former Secretary of State, USA) and Egon Bahr (Former Federal Minister for Special Affairs of the Federal Republic of Germany).