THREE:The Sovereigns of the Holy Alliance, however, acted on principles and with designs very different. Their general principle was not to tolerate any change in the European Governments that did not emanate from themselves. The Greek Revolution they denounced as a rebellion against the legitimate authority of the Sultan. The actual Government of Spain they regarded as incompatible with the safety of monarchical power, and France called upon the Sovereigns to re-establish the despotism of Ferdinand. Russia, Austria, and Prussia took the same view of the Spanish Revolution, but were unwilling to interfere by force of arms. France was not so scrupulous upon that point. Chateaubriand and other votaries of absolutism in Church and State were busy fomenting conspiracies in Spain, and secretly supplying arms and ammunition to the priest-ridden enemies of constitutional government in that country. An army which during the previous year had been assembled on the frontier, under the ridiculous pretence of preventing the fever at Barcelona from spreading into France, changed its name from that of a sanitary cordon to an army of observation. M. de Villele, the new French Prime Minister, threw off the mask, and in a circular note stated that unless Spain altered her political constitution, France would use force to convert her from her revolutionary theories.By the 8th of October Wellington was safely encamped within these impregnable lines, and the crowd of flying people sought refuge in Lisbon, or in the country around it. The British did not arrive a moment too soon, for Massena was close at their heels with his van; but he halted at Sobral for three days to allow of the coming up of his main body. This time was spent by the British in strengthening their position, already most formidable. The two ranges of mountains lying one behind the other were speedily occupied by the troops; and they were set to work at more completely stopping up roads, and constructing barriers, palisades, platforms, and wooden bridges leading into the works. For this purpose fifty thousand trees were allowed them, and all the space between Lisbon and these wonderful lines was one swarming scene of people bringing in materials and supplies. The right of the position was flanked by the Tagus, where the British fleet lay anchored, attended by a flotilla of gunboats, and a body of marines occupied the line of embarkation; Portuguese militia manned the Castle of St. Julian and the forts on the Tagus, and Lisbon itself was filled with armed bands of volunteers. There was no want of anything within this busy and interesting enclosure, for the British fleet had the command of the sea and all its means of supply. Seven thousand Portuguese peasantry were employed in bringing in and preparing the timber for the defences; and every soldier not positively on guard was enthusiastic in helping the engineers and artillery in the labour of making the lines impregnable.