This book offers the reader an introduction to the history of the EPP's bridge-building in Eastern Europe, in particular Poland, in the years before and after 1989. This sort of bridge-building has not yet been sufficiently recognised as sucessful "transnational politics" practised by a political party, in the spirit of European solidarity. Wahl reveals a number of previously unknown facts and also refutes a few myths, in particular that Social Democrats and Socialist parties were somehow more active than others in their relations with Eastern Europe. With this book Wahl hopes to enable readers to reassess the achievements of Europe's Christian Democrats, taking Poland as an example.