This book examines Donald M. Allen’s crucially influential poetry anthology The New American Poetry, 1945–1960 from the perspectives of American Cold War nationalism and literary transnationalism, considering how the anthology expresses and challenges Cold War norms, claiming post-war Anglophone poetic innovation for the United States and reflecting the conservative American society of the 1950s. Examining the crossroads of politics, social life, and literature during the Cold War, this book puts Allen’s anthology into its historical context and reveals how the editor was influenced by the volatile climate of nationalism and politics that pervaded every aspect of American life during the Cold War. Reconsidering the dramatic influence that Allen’s anthology has had on the way we think about and anthologize American poetry, and recontextualizing The New American Poetry as a document of the Cold War, this study not only helps us come to a more accurate understanding of how the anthology came into being, but also encourages new ways of thinking about all of Anglophone poetry, from the twentieth century and today.