Turning to our other ally, Russia, we find that she underwent a course of treatment similar to that which well-nigh prussianized Italy. In the Tsardom the task was especially easy owing largely to the advantages offered to Teutonic immigrants from the days of yore, to the German-speaking inhabitants of the Baltic provinces, to the proselytizing German schools which flourish in Petrograd, Moscow, Odessa, Kieff, Saratoff, Simbirsk, Tiflis, Warsaw and other centres, to German colonies scattered over Russia and to religious sects. During the Manchurian campaign the Commercial Treaty drafted in Berlin, and at first denounced by Count Witte as ruinous to his country, was agreed to and signed.[31] It was Hobson's choice. After that the empire, which had already been a favourite and fruitful field for Germany's experiments, became one of the most copious sources of her national prosperity. Commercial push and political espionage were so thoroughly fused that no line of demarcation remained visible. [31] In June 1904. Russia's losses were proportionate and at the time were computed at 35,000,000 marks a year. In the Tsardom the imposition of this tribute was resented. By the Teutons their economic victory was followed by political influence. Their agents and spies abounded everywhere. Time passed, and as relations between the two empires grew tenser, the danger defined itself in sharper outline to the eyes of Russian statesmen, who resolved, however, to postpone remedial measures until the day should come for the discussion of the renewal of the Commercial Treaty. The knowledge that Russia would refuse either to prolong that one-sided arrangement or to make another like it, and that the consequences of this refusal would be disastrous to Germany's economic and financial position, stimulated German statesmen to bring matters to a head before Russia could back her recalcitrance with a reorganized army, and was one of the contributory causes of the European struggle.