Holly Case is a historian of modern East-Central and Southeastern Europe whose work focuses on territorial competition, minorities, and visions of European statehood. Her first book, Between States: The Transylvanian Question and the European Idea during WWII appeared in May 2009. Through a close examination of the struggle between Hungary and Romania for control of Transylvania, the book shows how understandings of Europe evolved out of conflicts between states over territory and sovereignty. 

For her next project, she will explore how aspirations to create a Danubian or Balkan federation colored minority policy, ideologies at both ends of the political spectrum, and interstate relations during the first half of the twentieth century. Her other interests include European renewal projects in historical perspective and the politics of violence in twentieth-century Europe