There were twelve thousand four hundred and sixty-nine killed, wounded, and missing from McClellan's army in this battle. About two thousand of them were killed, and nine thousand five hundred missing. The Rebel loss is supposed to have been about fifteen thousand. Thirteen guns, fifteen thousand small arms, six thousand prisoners, and thirty-nine colors were taken from the Rebels at Antietam, South Mountain, and Crampton's Pass. The army expected a renewal of the attack on the morning of the 18th. It was a beautiful day. Two divisions, Couch's and Humphrey's, had arrived, which, with Porter's corps and Slocum's division of Franklin's, were fresh. Smith had been engaged but a short time on the 17th. There were nearly thirty-five thousand troops which could be relied upon for a vigorous attack. The reserve artillery could be brought in. There were several thousand Pennsylvania militia at Hagerstown, not of much account for fighting, but which could be used for train guards. "Whether to renew the attack on the 18th, or to defer it, even with the risk of the enemy's retirement, was the question with me," says General McClellan. He deliberated, and decided not to attack for the reasons, that, if he lost the battle, Lee could march on Washington, Baltimore, Philadelphia, and New York, without an enemy to oppose him, living on the country; the troops were tired; and the supply trains were in the rear. Sedgwick's division and Hooker's corps were somewhat demoralized and scattered. Sumner thought Sedgwick's division could not be relied upon to attack the enemy vigorously. Meade commanding Hooker's corps, said his troops could resist better than make an attack. The efficiency of the troops was good as far as it went. "The morale of some of the new troops under Burnside was impaired," says General McClellan.[78] [Footnote 78: Report, p. 212.] "My command was in good condition, holding its position on the opposite side of Antietam. One brigade had been severely handled, but I considered it in fighting condition," says General Burnside.[79] [Footnote 79: Burnside's Testimony, p. 642.] General McClellan expected fourteen thousand more men, and taking all things into consideration he decided not to renew the attack.