11th. As late as the 10th, he chided Thomas for not having reached Lafayette more promptly, and later on expressed doubt as to the necessity of Negley's retreat. The awakening was naturally a rude one. There was his army divided in three parts, more than a good day's march even in an air-line from each other, and this distance was practically much increased by the difficult character of the intervening ground and of the means of communication. There were actually several chains of hills between Crittenden and Thomas, and Lookout Mountain between Thomas and McCook. The Commander-in-chief must have confessed to himself that, with the rebel army concentrated against him, as it appeared to be, he had himself created the opportunity for his adversary to overwhelm him in detail. It must have been clear to him, also, that the separation of his army rendered a rapid retrograde movement upon the only available common point — Chattanooga — out of the question. There was, indeed, no other course left to him than the quickest possible concentration of his command in a good position for offence or defence, which would secure him like wise a good line of retreat to Chattanooga. He resolved upon this at once when the truth had dawned upon him that Bragg was before him on both slopes of Pigeon Mountain, and immediately took energetic steps to bring the concentration about. He would hardly have succeeded but for misunderstandings and accidents on the rebel side, already partly related, which came to his rescue and enabled him to accomplish what he himself in his official report called a matter of “life and death.”
At midnight on September 12, General McCook received orders from army headquarters, through General Thomas, to move with the utmost expedition to his support, after taking proper measures for the safety of his trains. The corps was in motion at daylight on the 13th. McCook first intended to march by the direct road to Dougherty's Gap and through it into McLemore's Cove, and expected to be himself with Thomas on the night of the same day. But,
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