The goal of this volume is to begin writing Central and Eastern Europe back into the story of the Second Vatican Council, its origins, and its consequences. This volume assembles - for the first time in any language - a broad overview of the place of four different Communist-run countries - Czechoslovakia, Hungary, Poland, and Yugoslavia - in the story of the Council. Framing these is an account of how the Cold War impacted the Council and its reception. The book engages with both English-language scholarship and the national historiographies of the countries that it examines, offering a global lens on the present state of research (covering all relevant languages) and seeking to propel that research forward. All of the chapters draw on both non-English secondary literature and original primary sources - some published, some archival.