In Portugal, the great struggle betwixt Massena and Wellington, upon which, as we formerly observed, the eyes of the world were fixed, had been finally decided in favour of the English general. This advantage was attained by no assistance of the elements--by none of those casual occurrences which are called chances of war--by no dubious, or even venturous risks--by the decision of no single battle lost or won; but solely by the superiority of one great general over another, at the awful game in which neither had yet met a rival. For more than four months, Massena, with as fine an army as had ever left France, lay looking at the impregnable lines with which the British forces, so greatly inferior in numerical strength, were covering Lisbon, the object of his expedition. To assail in such a position troops, whose valour he had felt at Busaco, would have been throwing away the lives of his soldiers; and to retreat, was to abandon the enterprise which his master had intrusted to him, with a confidence in his skill and his good fortune, which must, in that case, have been thereafter sorely abated. Massena tried every effort which military skill could supply, to draw his foe out of his place of advantage. He threatened to carry the war across the Tagus--he threatened to extend his army towards Oporto; but each demonstration he made had been calculated upon and anticipated by his antagonist, and was foiled almost without an effort. At length, exhausted by the want of supplies, and the interruption of his communications, after lying one month at Alenquer, Massena retreated to Santarem, as preferable winter-quarters; but, in the beginning of March, he found that these were equally untenable, and became fully sensible, that if he desired to save the remnant of a sickly and diminished army, it must necessarily be by a speedy retreat.