The United States by the war acquired an immense extent of territory, by many of its citizens, however, even at the time, regarded as a questionable good. The acquisition of so much slave territory without doubt hastened the crisis which called for the civil war of 1861. The experiences of the American army in the Mexican war, and the glory, exaggerated perhaps, which attached to their feats of arms, stimulated the taste for military pursuits, before very moderate in a peaceful and industrious land. The heroes of the campaign of Anahuac were transferred to the field of politics. General Taylor became President of the United States, and General Scott narrowly escaped it. The defects of the army were recognized and in great measure remedied, so that when the civil war did come, both armies, on the two contending sides of that unfortunate conflict, were in a state of readiness much in advance of the condition of the national troops before the campaign in Mexico, while a crop of officers, heroes of the so-called glorious victories of Palo Alto, Buena Vista, and the rest, responded to the call of loyalty, or rebellion, with the alacrity of experience. After the evacuation of Mexico an attempt was made by the Americans to capture Santa Anna. General Lane, who with a small force was engaged in driving guerrillas from the roads, received information that this general was at Tehuacan, not very far from Puebla. After marching all night in that direction, he occupied two large haciendas in that neighborhood, where his men and horses were concealed during daylight, and the Mexican residents held close prisoners. When evening arrived the command marched on towards Tehuacan. About five miles out they met a carriage with an escort of ten or twelve armed men. They were stopped, but the occupant of the carriage produced a written safeguard over the signature of an American general, and upon this the whole party was allowed to proceed. General Lane arrived at Tehuacan just at daylight, and entered it at once. But the bird had flown. Santa Anna had been there; but, warned by a breathless messenger on horseback, who rode back from the carriage the soldiers had met, to give him news of the approach of the soldiers, had just time enough to make his escape, with his family, leaving all his effects, which were quickly plundered by the troops of Lane's command. On Friday 1st, before the treaty of Guadalupe-Hidalgo, Santa Anna informed the Minister of War and the American Commander-in-Chief that he desired to leave Mexico and seek an asylum on a foreign soil, where he "might pass his last days in that tranquillity which he could never find in the land of his birth." This permission was granted, and he went to Jamaica, leaving his country at peace, but not forever.