But, above all, she put her trust in a vast political combination which she had laboriously prepared during the years preceding the great conflict: the combination which we have learned to call Mittel-Europa. None of us realised to how great an extent this plan had been put in operation before the war began. Briefly it depended on the possibility of obtaining an intimate union with the Austro-Hungarian Empire, a control over the Turkish Empire, and a sufficient influence or control among the little Balkan states to ensure through communication. If the scheme could be carried out in full, it would involve the creation of a practically continuous empire stretching from the North Sea to the Persian Gulf, and embracing a total population of over 150,000,000. This would be a dominion worth acquiring for its own sake, since it would put Germany on a level with her rivals. But it would have the further advantage that it would hold a central position in relation to the other world-powers, corresponding to Germany's central position in relation to the other nation-states of Europe. Russia could be struck at along the whole length of her western and south-western frontier; the British Empire could be threatened in Egypt, the centre of its ocean lines of communication, and also from the Persian Gulf in the direction of India; the French Empire could be struck at the heart, in its European centre; and all without seriously laying open the attacking powers to the invasion of sea-power. It was a bold and masterful scheme, and it was steadily pursued during the years before the war. Austro-Hungary was easily influenced. The ascendancy of her ruling races--nay, the very existence of her composite anti-national empire--was threatened by the nationalist movements among her subject-peoples, who, cruelly oppressed at home, were more and more beginning to turn towards their free brothers over the border, in Serbia and Rumania; and behind these loomed Russia, the traditional protector of the Slav peoples and of the Orthodox faith. Austro-Hungary, therefore, leant upon the support of Germany, and her dominant races would be very willing to join in a war which should remove the Russian menace and give them a chance of subjugating the Serbs. This latter aim suited the programme of Germany as well as it suited that of Austria, since the railways to Constantinople and Salonika ran through Serbia. Serbia, therefore, was doomed; she stood right in the path of the Juggernaut car.