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The classic work on the origin of World War I is ''Guns of August'' (1962) by Barbara Tuchman. Tuchman argued that the war was accidental. For an updated version of this view, see Christopher Clark's ''The Sleepwalkers: How Europe Went to War in 1914'' (2014).

The classic work on the origin of World War I is ''Guns of August'' (1962) by Barbara Tuchman. Tuchman argued that the war was accidental. For an updated version of this view, see Christopher Clark's ''The Sleepwalkers: How Europe Went to War in 1914'' (2014).

That Germany planned to go the war is the thesis of Fritz Fischer's ''Germany's Aims in the First World War'' (1968), which is based on the German diplomatic archive. Fischer's views were updated by David Fromkin in ''Europe's Last Summer: Who Started the Great War in 1914?'' (2004). At the end of the Cold War, historians gained access to significant new material from the German military archive in Potsdam. Annika Mombauer deals with this material in ''Helmuth von Moltke and the Origin of the First World War'' (2005).

That Germany planned to go to war is the thesis of Fritz Fischer's ''Germany's Aims in the First World War'' (1968), which is based on the German diplomatic archive. Fischer's views were updated by David Fromkin in ''Europe's Last Summer: Who Started the Great War in 1914?'' (2004). At the end of the Cold War, historians gained access to significant new material from the German military archive in Potsdam. Annika Mombauer deals with this material in ''Helmuth von Moltke and the Origin of the First World War'' (2005).

== Four "MAIN" causes==

== Four "MAIN" causes==