"This book provides a neorealist explanation of transatlantic relations and explores key issues at the forefront of the relationship between the US and its European allies in the context of the Russia-Ukraine war. Transatlantic relations, involving the relationship between the United States and its European counterparts, are an essential feature and a cornerstone of the foreign policy of many states. Whilst the transatlantic allies share a relationship that has been in place since 1945, the reelection of Donald J. Trump as US President, the continuing war between Russia and Ukraine, and unsettled issues around European strategic autonomy all pose questions on the state of the partnership. This book utilises a neorealist theoretical framework to tackle these questions. It argues that transatlantic relations continue to prosper and European states remain dependent on the US for their security, which is made viable and necessary by means of dealing with collective threats to the security of transatlantic allies, of which the Russian invasion of Ukraine is the most obvious recent manifestation. The book also deals with other notable case studies of transatlantic relations, such as the French intervention in Mali and the US withdrawal from Afghanistan. This book will be of interest to students of European security, Foreign Policy, and International Relations"-- Provided by publisher.