All danger of an advance by the Russians across the Danube and the Balkans was now at an end. The Turks unaided had effectually prevented any such project. The Russian army thereupon retreated from the Danubian principalities. Their place there was taken by an Austrian army, with the consent of both Russia and the two Western Powers. No reason existed, therefore, why the war should be continued, so far as England and France were concerned. There was no longer any necessity for their armies to defend the frontiers of Turkey. But a war spirit had been roused in the two countries and was not to be allayed without much shedding of blood. The two Powers decided to use their armies which had been collected at Varna for the invasion of the Crimea and the destruction of the naval arsenal at Sebastopol, which was regarded as a permanent menace to Turkey. Thenceforth, the part of the Turks in the war became subordinate and even insignificant. The war was fought _à outrance_ between the two allied Powers and Russia. The successful landing of the two armies at Eupatoria, in the Crimea, their splendid victory over the Russian army at the Alma, their flank march to the south of Sebastopol, the commencement of the long siege of that fortress, the famous battles of Balaklava and Inkerman and the terrible sufferings of the British army in the winter of 1854-5, the memorable defence of Sebastopol under General Todleben, the capture of the Malakoff by the French on September 8th, 1855, and the consequent evacuation of the city and forts of Sebastopol, on the southern side of its great harbour, are events of the deepest interest in the histories of the allied Powers and Russia, but have comparatively little bearing on our present theme. Very little use was, in fact, made of the Turkish army by the Allies in the course of the war. A division of seven thousand men was sent to the Crimea in the autumn of 1854, and was employed for the defence of Balaklava. It was led by most incompetent officers, and when attacked by the Russians on the morning of the Battle of Balaklava, the men precipitately fled. This exposed the flank of the allied army to great danger. Later, another Turkish force under Omar Pasha was sent to Eupatoria. It was attacked there by a much superior Russian army, early in 1855, and fighting behind earthworks it made a very effective resistance and completely repulsed the Russians. It was said that the humiliation of this defeat of his troops by the despised Turks was the immediate cause of the death of the Emperor Nicholas.