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The '''causes of World War I''' vary from the immediate (the assassination of the heir to the Austrian throne by Serbian nationalists, to the complex (such as ethnic nationalism across Europe, the arms race, and the competing alliance systems) to the remote (the [[Franco-Prussian War]] of 1870-1871).   

The '''causes of World War I''' vary from the immediate (the assassination of the heir to the Austrian throne by Serbian nationalists, to the complex (such as ethnic nationalism across Europe, the arms race, and the competing alliance systems) to the remote (the [[Franco-Prussian War]] of 1870-1871).   

Political scientists generally say the war was not inevitable--that it was caused more by accident, misunderstanding and too-hurried decision-making.  Historians say the deep forces would inevitably have caused a war.

Political scientists generally say the war was not inevitable--that it was caused more by accident, misunderstanding and too-hurried decision-making.  Historians say the deep forces would inevitably have caused a war.

== MAIN ==

== Four "MAIN" causes==

Four of the causes of [[World War I]] are often referred to by the acronym "MAIN", which stands for Militarism, Alliances, Imperialism, and Nationalism.

Four of the causes of [[World War I]] are often referred to by the acronym "MAIN", which stands for Militarism, Alliances, Imperialism, and Nationalism.

==Multiple causes==

==Multiple causes==

* Williamson Jr.  Samuel R. and Ernest R. May. "An Identity of Opinion: Historians and July 1914," ''Journal of Modern History''(2007) Volume 79, Number 2, 335-87, historiography

* Williamson Jr.  Samuel R. and Ernest R. May. "An Identity of Opinion: Historians and July 1914," ''Journal of Modern History''(2007) Volume 79, Number 2, 335-87, historiography

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[[Category:World War I]]

[[Category:World War I]]