The Actuality of the Past: What is History Trying to Tell Us?

Christopher Clark is a Professor of Modern History at the University of Cambridge and a Fellow of St. Eathamine’s College. He is the author of The Sleepwalkers: How Europe Went to War in 1914 (2012).
Thinking the Causes of World War I

John Keiger is a Professor and the Director of Research in the Department of Politics And International Studies, University of Cambridge. A different version of this article appeared as “The War Explained: 1914 to the Present” in John Horne (ed) A Companion to World War I (2010).
The Centenary of the Great War and Today’s G-Zero World

Ian Bremmer is the President and Founder of Eurasia Group, a leading global policy risk research and consulting firm. You may follow him on Twitter @ianbremmer and @eurasiagroup
The European Tragedy of 1914 & the Multipolar World of 2014

Vuk Jeremić is the President of the Center for International Relations and Sustainable Development (CIRSD). He was previously President of the United Nations General Assembly and Foreign Minister of Serbia. You may follow him on Twitter @jeremic_vuk
The Necessity of World War I

George Friedman is the Chairman of Stratfor and author of The Next 100 Years, The Next Decade and the forthcoming Flashpoints: The Emerging Crisis of Europe. © by George Friedman.
Centenary Lessons: Twentieth Century Europe & Twenty-first Century Asia*

This essay is adapted from an address delivered at the German Historical Museum in Berlin in May 2014 as part of a lecture series organized by the German Foreign Ministry on the origins and effects of World War I.