he personally served in Mexico made special mention of him in official reports. General Persifer Smith wrote: " I wish to record particularly my admiration of the conduct of Captain Lee, of the engineers the soundness of his judgment and his personal daring being equally conspicuous. " General Shields referred to him as one in whose skill and judgment I had the utmost confidence." General Twiggs declared " his gallantry and good conduct deserve the highest praise, " and Colonel Riley bore "testimony to the intrepid coolness and gallantry exhibited by Captain Lee when conducting the advance of my brigade under the heavy flank fire of the enemy."
In the subsequent years of peace Lee was assigned first to important duties in the corps of military engineers with headquarters at Baltimore, from 1849 to 1852, and then served as superintendent of the military academy at West Point until 1855, when he was promoted brevet lieutenant-colonel and assigned to the Second cavalry, commanded by Colonel Albert Sidney Johnston. This remarkably fine regiment included among its officers besides Johnston and Lee, Hardee, Thomas, VanDorn, Fitz Lee, Kirby Smith, and Stoneman, later distinguished in the Confederate war. With this regiment Lee shared the hardships of frontier duty, defending the western frontier of Texas against hostile Indians from 1856 until the spring of 1861. In October, 1859, he was at Washington in obedience to command, and fortunately so, as during his visit occurred the John Brown raid. President Buchanan selected him to suppress the movement, which he did with prompt vigor, after giving the proper summons to Brown to surrender. Returning to Texas, he was in command of the department in 1860 and early in 1861, while the Southern States were passing ordinances of secession, and with sincere pain observed the progress of dissolution. Writing January 23, 1861, he said that the South had been aggrieved by the acts of the North, and that he felt the aggression and was willing to take