This monograph focuses on the challenges that interwar regimes faced and how they coped with them in the aftermath of World War One, focusing especially on the failure to establish and stabilize democratic regimes, as well as on the fate of ethnic and religious minorities. Topics explored include the political systems and how they changed during the two decades under review, land reform, Church–state relations, and culture. Countries studied include Poland, Czechoslovakia, Hungary, Yugoslavia, Romania, Bulgaria, and Albania.