Russian mobilization, as planned, was completed by early November.43 Nicholas wanted to lead the army into battle personally, but allowed himself to be dissuaded (for the time being) by the Council of Ministers on the grounds that reverses at the front would damage his prestige.44 Since it was custom for the army’s supreme command to be entrusted to a member of the Imperial family, given the nearly autocratic powers accorded the Commander in Chief in the zone of combat, the post went to the Tsar’s uncle, Grand Duke Nikolai Nikolaevich. This appointment was received with some surprise, because even though the Grand Duke had graduated from the General Staff Academy and was popular with the military, he had not been involved in the preparation of strategic plans. Nevertheless, it was indubitably the best choice under the circumstances.45 Nikolai was one of the few members of the ruling dynasty to be favorably viewed by public opinion, which credited him with persuading the Tsar to sign the October Manifesto. His very popularity, however, made him enemies at the Court: the Empress, in particular, suspected him of designs on the throne.
As agreed with France, Russia deployed two armies in the northwest. The First Army, commanded by General Paul-Georg Karlovich von Rennenkampf, a Baltic German, was stationed in the Vilno Military District. The Second, under General Alexander Samsonov, was deployed near Warsaw. Rennenkampf had participated in the Japanese war as division commander but had never led larger units. Samsonov had no combat experience.
The sources differ on Russian strategic intentions in July 1914, but the conduct of the operations suggests that they had initially planned to attack the Germans and the Austrians simultaneously in drives on Berlin and Vienna. According to one historian with access to the archives, the Russians changed their plans at the last minute under French pressure in favor of immediate operations against German forces in East Prussia. The hastily mounted East Prussian campaign was meant to eliminate the threat of a flanking movement against Russian armies advancing westwards in Poland and Galicia.46 The strategic plan now put into effect called for the First Army to invade East Prussia from the east to pin down the bulk of the German forces deployed there, while the Second Army struck north, in the direction of Allenstein, to cut them off from Germany proper. Having accomplished these missions, Rennenkampf and Samsonov were to join forces and advance on Berlin. The two Russian armies enjoyed considerable preponderance in numbers (one and a half to one), an advantage somewhat offset by the fact that the terrain in which they were to operate, a region of lakes and forests, favored the defense. They attacked on the fourteenth day of mobilization, one day earlier than they had promised the French. It was a bravado performance, in the best Suvorovian tradition, which Samsonov’s chief of staff privately described as an “adventure.”47
The Russians at first made good progress. Indeed, they advanced so rapidly that the forward units outran their logistic support. For lack of time to string telephone wires, they sent reports and received their orders by wireless, usually in the clear. The Germans intercepted these messages, obtaining from them a picture of Russian dispositions and movements which they were to use to deadly effect. The two Russian armies acted independently, without coordination, each eager for the laurels of victory.
