Why do some countries have 'Culture Wars' over morality issues such as abortion and same-sex marriage while other countries hardly experience any conflict at all? This book argues that morality issues only generate major conflicts in political systems with a significant conflict between religious and secular parties, because this is required for these issues to become part of party competition. Conversely, morality issues get almost no attention in political systems where religion has disappeared from the party system and where no political actors see any interest in promoting a strongly secular platform. The comparative dynamic of morality politics is analyzed through detailed case studies of five morality issues (abortion, same-sex marriage, assisted reproduction, stem cell research and euthanasia) in the Netherlands, Spain, Switzerland, the United Kingdom, Denmark and the United States. -- Back cover.