Around a century has passed since the political events of the post-World War I period took place and a wealth of publications has been issued on the topic. However, we can firmly state that this subject is still open to further research. This volume offers a multitude of perspectives on Europe's political establishments in the early 1920s. It offers new insights into this crucial point in twentieth-century history from the perspectives of the Great Powers, the small countries, the winners, the losers and the neutral parties. Many of the studies contained within are on topics that are completely new to the field and will have a profound impact on the historical literature.