Terrorism: Commentary on Security Documents is a series that provides primary source documents and expert commentary on various topics relating to the worldwide

Hybrid Threats and Grey Zone Conflict explores the legal dimension of strategic competition below the threshold of war, assessing the key legal and ethical ques

"Geopolitical competition between liberal democracies and authoritarian States is one of the defining features of our age. Most of this competition takes place

The Ukrainian conflict has come to be considered as the most serious geopolitical crisis in Central and Eastern Europe since the end of the Cold War. Its implic

This volume explores key aspects of the emerging international security environment to inform debates about the future of U.S. defense strategy, the changing na