Respuesta :

B3ANI3
Germany declared war on Russia on the 1st of August 1914.
And war was declared in France on the 3rd of August 1914.
August 1, 1914 - Germany declares war on Russia. France and Belgium begin full mobilization. August 3, 1914 - Germany declares war on France, and invades neutral Belgium. Britain then sends an ultimatum, rejected by the Germans, to withdraw from Belgium.

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