<P> The situation in the Balkans, especially in the wake of the Serbo - Bulgarian War and the 1878 Treaty of Berlin, which made Russia feel cheated of its gains made in the Russo - Turkish War, prevented the League from being renewed in 1887 . </P> <P> In an attempt to stop Russia from allying with France, Bismarck signed the secret Reinsurance Treaty with Russia in 1887 . The treaty assured that both parties would remain neutral if war broke out . </P> <P> The alliance between Russia and France and Bismarck ′ s exclusion of Russia from the German financial market in 1887 prevented the treaty from being renewed in 1890 . That ended the alliance between Germany and Russia . </P> <P> After the Reinsurance Treaty was not renewed in 1890, Russian leaders grew alarmed at the country's diplomatic isolation and joined the Franco - Russian Alliance in 1894 . </P>

Why did the triple alliance and triple entente fight