Russian diplomatic and military interests subsequently re-focussed on Central Asia, where Russia had quelled a series of uprisings in the 1870s, and Russia incorporated hitherto independent emirates into the empire. Britain renewed its concerns in 1881 when Russian troops occupied Turkmen lands on the Persian and Afghan borders, but Germany lent diplomatic support to Russian advances, and an Anglo-Russian war was averted. Meanwhile, Russia's sponsorship of Bulgarian independence brought negative results as the Bulgarians, angry at Russia's continuing interference in domestic affairs, sought the support of Austria-Hungary. In the dispute that arose between Austria-Hungary and Russia, Germany took a firm position toward Russia while mollifying the tsar with a bilateral defensive alliance, the Reinsurance Treaty of 1887 between Germany and Russia. Within a year, Russo-German acrimony led to Otto von Bismarck's forbidding further loans to Russia, and France replaced Germany as Russia's financier. When Wilhelm II dismissed Bismarck in 1890, the loose Russo-Prussian entente collapsed after having lasted for more than twenty-five years. Three years later, Russia allied itself with France by entering into a joint military convention, which matched the dual alliance formed in 1879 by Germany and Austria-Hungary.