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Reinsurance Treaty

Late 19th-century German-Russian agreement

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Through Berlin, World War I and Balkans

The treaty provided that both parties would remain neutral if the other became involved in a war with a third great power, with the exception of if Germany attacked France or if Russia attacked Austria-Hungary. Germany made concessions to Russia by changing its stance on Bulgaria and Eastern Rumelia (now part of southern Bulgaria), agreeing that they were in the Russian sphere of influence and agreeing to support Russian action to keep the Black Sea as its own preserve. After Bismarck lost power in 1890, his enemies in the Foreign Ministry convinced the Kaiser that the treaty was too much in Russia's favor and should not be renewed. The cancellation, as with the treaty itself, was generally held from the public. Russia, however, had not wanted to terminate the alliance. Needing new allies, Russia opened negotiations with Germany's enemy France. The resulting Franco-Russian Alliance of 1891–1892 to 1917 rapidly began to take shape. Historians consider the new alliance a major disaster for Germany and one of the long-term causes of the First World War.

Background

The Reinsurance Treaty originated after the German-Austrian-Russian Dreikaiserbund (League of the Three Emperors) had lapsed in 1887 due to competition between Austria-Hungary and the Russian Empire for spheres of influence in the Balkans. In early 1887, a Russian diplomat went to Berlin to propose a treaty in which Russia would be a friendly neutral country during a war between Germany and France, and in return, Germany would recognize Russian dominance in Bulgaria and promise a friendly neutrality if Russia seized the Turkish Straits from the Ottoman Empire. Bismarck strongly supported the idea, but Alexander III rejected the plan until Foreign Minister Nikolay Girs convinced him that it would be best for Russia in the absence of French friendship. Bismarck refused Russia's request for Germany to stay neutral if Russia went to war against Austria citing that Berlin was in the Triple Alliance with Vienna.

Bismarck had a long-term policy of preserving the peace in Europe, which was threatened by the growing competition between Russia and Austria–Hungary for dominance over the Balkans. He felt that an agreement with Russia was essential to prevent a Russian alliance with France, and he always had the policy of keeping France isolated diplomatically to avoid Germany from fighting a two-front war against both France and Russia. Bismarck risked the expansion of the Russian sphere of influence toward the Mediterranean and diplomatic tensions with Vienna.

The treaty signed by Bismarck and Russian Foreign Minister Nikolay Girs contained two separate agreements:

  1. Germany and Russia agreed to observe benevolent neutrality if either become involved in a war with a third country. If Germany attacked France or if Russia attacked Austria-Hungary, that provision would not apply. In those cases, the distinguished bilateral alliances could come into effect. The Reinsurance Treaty applied only if France or Austria–Hungary were the aggressors.
  2. Germany would declare neutrality if Russia intervened against the Ottoman control of the Bosphorus and the Dardanelles.

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