and Vicksburg On 19 April 1862, Tyler moved farther south where she captured the Confederate transport Albert Robb and burned another Southern ship, Dunbar. After Shiloh and the capture of Island No. 10 on the Mississippi, the North shifted the emphasis of its war in the west to conquering that mighty river in an effort to divide the Confederacy in two. Fort Pillow fell on 4 June and Memphis, Tennessee fell on 6 June. Vicksburg, Mississippi was the next obstacle, and it took more than a year to remove it. Those efforts occupied Tyler intermittently for the ensuing 13 months. Her first action of the Vicksburg Campaign came in mid-July when she joined the ironclad and the in probing the Yazoo River above Vicksburg in search of the incomplete Confederate ironclad ram CSS Arkansas which had eluded capture at Memphis and sought refuge far up the Yazoo. The falling waters of the Yazoo forced Arkansas downriver; but, by then, she was virtually complete and ready for battle. On 15 July, the Union probe and the falling river brought Tyler and her colleagues into a collision with Arkansas. After a brisk exchange of cannonades, Carondelet was disabled. Only Tyler, abandoned by Queen of the West, remained to suffer the full onslaught of the powerful Southern warship. Recognizing the futility in attacking her adversary unsupported, Tyler reluctantly retreated with Arkansas in pursuit. After a running fight all the way down the Yazoo, the two warships reached the Union fleet lying near the confluence of the two rivers. Tyler sought refuge among the fleet while Arkansas ran through it, delivering salvo after salvo into the aggregate of ships, and moored safely under the protection of the Vicksburg shore batteries. During the first phase of the siege of Vicksburg, Tyler participated in the joint Army-Navy expedition up the Yazoo River to establish a landward advance on the Confederate stronghold. That expedition lasted from 7 December 1862 until 3 January 1863. Though the expedition showed no immediate fruits, the land campaign, in conjunction with the waterborne attacks, eventually brought Vicksburg to her knees. In the meantime, Tyler saw action in two other operations. The first was to open Arkansas to invasion and the second was in support of the slow strangulation of Vicksburg. In mid-January, she joined other units of the squadron in escorting Army transports to Fort Hindman which guarded Arkansas Post on the