To protect an open frontier against the incursions of nomadic tribes three methods are possible: the construction of a great wall, the establishment of a strong military cordon, and the permanent subjugation of the marauders. The first of these expedients, adopted by the Romans in Britain and by the Chinese on their northwestern frontier, is enormously expensive, and was utterly impossible in a country like Southern Russia, where there is no stone for building purposes; the second was constantly tried, and constantly found wanting; the third alone proved practicable and efficient. Though the Government has long since recognised that the acquisition of barren, thinly populated steppes is a burden rather than an advantage, it has been induced to go on making annexations for the purpose of self-defence, as well as for other reasons.
In consequence of this active part which the Government took in the extension of the territory, the process of political expansion sometimes got greatly ahead of the colonisation. After the Turkish wars and consequent annexations in the time of Catherine II., for example, a great part of Southern Russia was almost uninhabited, and the deficiency had to be corrected, as we have seen, by organised emigration. At the present day, in the Asiatic provinces, there are still immense tracts of unoccupied land, some of which are being gradually colonised.
If we turn now from the East to the West we shall find that the expansion in this direction was of an entirely different kind. The country lying to the westward of the early Russo-Slavonian settlements had a poor soil and a comparatively dense population, and consequently held out little inducement to emigration. Besides this, it was inhabited by warlike agricultural races, who were not only capable of defending their own territory, but even strongly disposed to make encroachments on their eastern neighbours.
Russian expansion to the westward was, therefore, not a spontaneous movement of the agricultural population, but the work of the Government, acting slowly and laboriously by means of diplomacy and military force; it had, however, a certain historical justification.
No sooner had Russia freed herself, in the fifteenth century, from the Tartar domination, than her political independence, and even her national existence, were threatened from the West. Her western neighbours, were like herself, animated with that tendency to national expansion which I have above described; and for a time it seemed doubtful who should ultimately possess the vast plains of Eastern Europe. The chief competitors were the Tsars of Moscow and the Kings of Poland, and the latter appeared to have the better chance. In close connection with Western Europe, they had been able to adopt many of the improvements which had recently been made in the art of war, and they already possessed the rich valley of the Dnieper. Once, with the help of the free Cossacks, they succeeded in overrunning the whole of Muscovy, and a son of the Polish king was elected Tsar in Moscow. By attempting to accomplish their purpose in a too hasty and reckless fashion, they raised a storm of religious and patriotic fanaticism, which very soon drove them out of their newly acquired possessions. The country remained, however, in a very precarious position, and its more intelligent rulers perceived plainly that, in order to carry on the struggle successfully, they must import something of that Western civilisation which gave such an advantage to their opponents.
Some steps had already been taken in that direction. In the year 1553 an English navigator, whilst seeking for a short route to China and India, had accidentally discovered the port of Archangel on the White Sea, and since that time the Tsars had kept up an intermittent diplomatic and commercial intercourse with England.
But this route was at all times tedious and dangerous, and during a great part of the year it was closed by the ice. In view of these difficulties the Tsars tried to import "cunning foreign artificers," by way of the Baltic; but their efforts were hampered by the Livonian Order, who at that time held the east coast, and who considered, like the Europeans on the coast of Africa at the present day, that the barbarous natives of the interior should not be supplied with arms and ammunition. All the other routes to the West traversed likewise the territory of rivals, who might at any time become avowed enemies. Under these circumstances the Tsars naturally desired to break through the barrier which hemmed them in, and the acquisition of the eastern coast of the Baltic became one of the chief objects of Russia's foreign policy.
After Poland, Russia's most formidable rival was Sweden. That power early acquired a large amount of territory to the east of the Baltic--including the mouths of the Neva, where St. Petersburg now stands--and long harboured ambitious schemes of further conquest.
In the troublous times when the Poles overran the Tsardom of Muscovy, she took advantage of the occasion to annex a considerable amount of territory, and her expansion in this direction went on in intermittent fashion until it was finally stopped by Peter the Great.
In comparison with these two rivals Russia was weak in all that regarded the art of war; but she had two immense advantages: she had a very large population, and a strong, stable Government that could concentrate the national forces for any definite purpose.
All that she required for success in the competition was an army on the European model. Peter the Great created such an army, and won the prize. After this the political disintegration of Poland proceeded rapidly, and when that unhappy country fell to pieces Russia naturally took for herself the lion's share of the spoil.