Cornelia Navari 
Internationalism and the State in the Twentieth Century [PDF ebook] 

Using in-depth analysis of power relations, material changes and developments in ideologies, this essential text provides an accessible and student friendly historical introduction to the changing relations between states. The subjects covered include long term trends relating to war, the changing balance of power, decolonisation, the European system and the Cold War. This volume is essential reading for all those interested in the history of International Relations in the twentieth century.