Every event has a basis in the history. Hence, the response are as follows.
a) Keegan believes the war to be brutal, unnecessary, and with negative effect while Strachan believes the war to have a purpose with some positive effects.
b) The brutality of the totalitarian regions that were partially a result of the war.
c) Discussion of the positive and negative effects of the destruction of the Russian, Ottoman, Austro-Hungarian, and German empires (e.g. the end of monarch and empirical governments).
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