The whole of the French fleet of war-balloons had been attached to the Army of the East with the intention, which had been realised beyond the most sanguine expectations, of overrunning and subjugating Central Europe in the shortest possible space of time. It had swept like a destroying tempest through the Rhine Provinces, leaving nothing in its track but the ruins of towns and fortresses, and wide wastes of devastated fields and vineyards. Before the walls of Munich it had effected a junction with the Italian army, consisting of ten army corps, numbering two million men. The ancient capital of Bavaria fell in three days under the assault of the aërial fleet and the overwhelming numbers of the attacking force. Then the Franco-Italian armies advanced down the valley of the Danube and invested Vienna, which, in spite of the heroic efforts of what had been left of the Austrian army after the disastrous conflicts on the Eastern frontier, was stormed and sacked after three days and nights of almost continuous fighting, and the most appalling scenes of bloodshed and destruction, four days after the surrender of the German Emperor to the Tsar had announced the collapse of what had once been the Triple Alliance. From Vienna the Franco-Italian armies continued their way down the valley of the Danube, and at Budapest was joined by the northern division of the Russian Army of the South, and from there the mighty flood of destruction rolled south-eastward until it overflowed the Balkan peninsula, sweeping everything before it as it went, until it joined the force investing Constantinople. The Turkish army, which had retreated before it, had concentrated upon Gallipoli, where, in conjunction with the allied British and Turkish Squadrons holding the Dardanelles, it prepared to advance to the relief of Constantinople. The final attack upon the Turkish capital had been purposely delayed until the arrival of the French war-balloons, and as soon as these appeared upon the scene the work of destruction instantly recommenced. After four days of bombardment by sea and land, and from the air, and a rapid series of what can only be described as wholesale butcheries, the ancient capital of the Sultan shared the fate of Berlin and Vienna, and after four centuries and a half the Turkish dominion in Europe died in its first stronghold. Meanwhile one of the wings of the Franco-Italian army had made a descent upon Gallipoli, and after forty-eight hours' incessant fighting had compelled the remnant of the Turkish army, which it thus cut off from Constantinople, to take refuge on the Turkish and British men-of-war under the protection of the guns of the fleet. In view of the overwhelming numbers of the enemy, and the terrible effectiveness of the war-balloons, it was decided that any attempt to retake Constantinople, or even to continue to hold the Dardanelles, could only result in further disaster.