During Sunday night and Monday morning, Buell moved approximately 17,000 troops into line on the Union left. Lew Wallace put almost 6,000 fresh troops—Fort Donelson veterans—in position on the right. The Confederates, receiving no reinforcements, spent a sleepless night in the captured Union camps annoyed by shells from the gunboats, which were thrown among them at 15-minute intervals throughout the night. [Illustration: _Gen. Don Carlos Buell._ Courtesy National Archives.] The battle had already raged for 13 hours. Charge after charge had been made by the Confederates, followed by Federal countercharges. Ground had been gained and lost, but the general direction of movement had always been toward the Landing. By the time the day was over and the weary soldiers had lain down to rest, the Confederates were in possession of all the field, except the Landing and a bit of adjoining territory. Many Southern soldiers, in view of the gains made during the day, believed that the victory was already theirs. An equally large number of Northerners were willing to concede defeat. When night at last closed in around the hostile armies, feelings of uncertainty prevailed among the leaders on both sides. Many of them were well aware that the battle was yet to be won or lost. _The Second Day_ Monday morning, April 7, at daylight, the vanquished of the previous day renewed the struggle with increased strength and restored confidence. Anxious to take the initiative, the Union armies were put in motion almost simultaneously, with Buell on the left, Lew Wallace on the extreme right, and Grant’s weary troops occupying the space between. The movement began unopposed, except by small unsupported parties which were quickly forced to retreat. The Confederates had been unable to reorganize their widely scattered forces during the night. Therefore, when the Union advance began on Monday the opposing line of battle was yet unformed. The Confederates were still back in the vicinity of the captured Union camps vainly trying to reorganize their broken commands. They did not succeed in forming a line until after the enemy had advanced beyond the Peach Orchard and the Hornets’ Nest, regaining much of the territory they had lost the day before. [Illustration: _Young Confederate enlisted men from the Washington Artillery of New Orleans._ From a photograph made prior to the Battle of Shiloh.] The Confederates, one brigade strong, were first encountered by Lew Wallace a short distance in front of his Sunday night bivouac. In a brief but spirited engagement, the Confederates were attacked in front and on the left flank by the Union division. To keep from being surrounded, they fell back almost a mile in the direction of Shiloh Church to take their place in the forming line of battle.