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Germany and Austria signed a military alliance treaty
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Period: to
The saber rattling before the First World War
October 7, 1879-June 29, 1913, the first half of the First World War -
France and Russia signed a military agreement, and the confrontation between the two major military blocs began.
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Britain and Russia signed a mutual assistance agreement, and the Three-country Agreement was formally established.
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Serbia, Greece, Montenegro, Romania, and Turkey declared war on Bulgaria, and the Second Balkan War broke out.
