In spite of the difficulties between Austria and Russia, of which we have spoken, the two countries had arrived, previous to the outbreak of the Russo-Turkish War, at an understanding according to which Austria maintained a friendly neutrality toward Russia during the war, in consideration of which Russia permitted Austria's occupation of Bosnia and Herzegovina. The following years are again marked by internal difficulties resulting in a reign of terrorism and in a period of reactionary government which exceed almost anything in Russia's previous history. It found its culmination in the successful assassination of Czar Alexander II on March 13, 1881. He was succeeded by his son Alexander III under whose rule the gulf between Russia and its western neighbors, Germany and Austria, widened in the same proportion as the friendship between Russia on one side and France and England on the other increased. To a certain extent undoubtedly this may be traced back to the new czar's personal relations with the rulers of other nations; for the czarina was a sister of Alexandria of Denmark, then Princess of Wales and later Queen of England, and the daughter of that King of Denmark who in 1864 had lost to Germany and Austria Schleswig-Holstein. The beginning of Alexander III's reign was marked with the beginning of a series of terrible persecutions of the Jewish inhabitants of the Russian Empire which, though subsiding from time to time, have continued throughout the years until the present time. With the causes of these persecutions we are not concerned here, for they were undoubtedly much more of an economic than of a political nature. In one respect, however, the results had an important bearing, at least for a time, on Russian politics. For during many years both France and especially England found it difficult and almost next to impossible to enter into a close alliance with a country which apparently absolutely refused to acknowledge some of the most fundamental principles of modern government in which they themselves believed: religious and personal freedom.