Grant feared that the object of Price's movement might be something of vastly more importance than the destruction of a railroad station, as indeed it was. Price's purpose in seizing Iuka was to get control of the railroad east of that point long enough to enable him to send heavy reinforcements to Bragg, who was at that time pushing Buell back upon Louisville, with the prospect, if reinforced in timely fashion, of capturing that city, compelling Grant's retirement to Cairo, and establishing the Ohio river as the northern boundary and the military line of the Confederacy. Accordingly Grant dangerously weakened several exposed points in order to concentrate under Rosecrans a sufficient force to drive Price out of Iuka before the main body of the Confederate army south of Corinth could join him there. The operation resulted in some strenuous fighting. Price was driven back and his scheme was defeated. The details of the battle need not be recounted here. They belong to the domain of minute history, covering special campaigns. For the purposes of a general history of the war, it is sufficient to point out the only strategic purpose involved in the movement, and its defeat by a timely and judicious activity. CHAPTER XXXV BRAGG'S CAMPAIGN AGAINST LOUISVILLE Strategically considered there was no point in the middle South so important to either side at that time as Chattanooga. Either side having possession of that place could hold it against a force outnumbering its garrison many times. More important still, its possession by the Confederates opened to them three or four different routes of advance into Kentucky, which no enemy with anything like an equal force could effectually guard or defend. To hold one of these routes was to open another. Confederate possession of Chattanooga at that period of the war meant therefore the possible and even probable conquest of all eastern Kentucky, the isolation and fall of Nashville, the reconquest of the Tennessee and Cumberland rivers, and the enforced retirement of Grant's advanced army to the line of the Ohio river. All these consequences, as General Grant has said, were the probable results of a Confederate occupation of Chattanooga in force, and had Bragg succeeded in the campaign he directed from that point all these consequences would have been morally certain to befall the Union arms, as General Grant saw at the time and afterwards set forth in his "Memoirs." On the other hand the seizure of Chattanooga by a Federal force of consequence, would have closed and barred the gate to all further advances of the Confederates into Tennessee and Kentucky. It would have made the southern boundary of Tennessee permanently the most northerly military line of division between North and South, making of Kentucky a state completely saved to the Union and of Tennessee a state completely recovered to it.