In the unstable international conditions of the post-Cold War world, the role of diplomacy has become increasingly important with the greater complexity of relationships between international power centres. This book tracks the historical development of diplomatic relations and methods from the earliest period up to their current transformations in the late 20th century, showing how they have changed to encompass new technological advances and the needs of modern international environments. The book brings the history of diplomacy fully up-to-date, exploring altered perspectives and newly emerging practices resulting from United Nations diplomacy and recent political developments in eastern and central Europe, including the former Yugoslavia.