This volume investigates the complex evolution of transatlantic security architectures and geopolitical dynamics from the onset of the Cold War through the early twenty-first century. Edited by Jussi Hanhimäki and featuring contributions from a range of international scholars, the text utilizes primary historical documentation and diplomatic analysis to examine how institutional frameworks, national identities, and shifting global power structures have defined the relationship between the United States and its European partners. The collection argues that transatlantic security is not a static condition but a continuous process of negotiation, adaptation, and internal tension.

Experts and academic reviewers identify this handbook as a comprehensive reference for students and researchers of twentieth-century international relations. Readers frequently note the academic density of the prose, which provides a rigorous examination of diplomatic history and security policy.