This book examines the relationship of belonging and social policy in a historical-comparative perspective reconstructing individual arguments in favour of or opposed to the expansion of solidarities.1. Introduction PART I: SOCIAL SOLIDARITY AND THE WELFARE STATE 2. Towards a New Historical Sociology? 3. Solidarity and Social Policy PART II: BENEFIT SOCIETIES AND THE WELFARE STATE 4. Social Security Beneath the Nation State 5. Collectively Against the State 6. Debating the Expansion of Solidarity 7 .Coping with Change PART III: SOCIAL SOLIDARITY BETWEEN EUROPE AND THE NATION STATE 8. Beyond the National: The Construction of Social Solidarity in the European Union 9. ConclusionStefanie Börner is Research Associate at the Free University of Berlin, Germany.