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Events on Saturday 18 June 1887 1
1887Reinsurance Treaty signed between Germany and RussiaSecret pact aims to preserve peace between the two empiresChancellor Otto von Bismarck negotiates the Reinsurance Treaty, a secret agreement between the German and Russian empires pledging neutrality if either is attacked by a third power. The treaty is designed to prevent Russia from allying with France against Germany. It lapses in 1890 after Bismarck's dismissal, and is not renewed.