the Yazoo. Battle of Arkansas Post Monarch joined 11 other ships in the expedition to capture Fort Hindman, Arkansas, 4 January 1863, a point that Rear Admiral David Dixon Porter noted as "a tough nut to crack." Joining efforts with Major General William Tecumseh Sherman's troops on 9 January 1863, the Union ships fought in the Battle of Arkansas Post and shared in the capture of Fort Hindman on 11 January. Later service In February 1863, Monarch steamed up the Yazoo to Greenville, Mississippi, to relieve Commander Prichett, controlling guerilla activity. In April 1863, she joined the rams , , and in supporting Colonel Ellet's marine brigade in the Tennessee Valley. With the fall of Vicksburg in July 1863 and the collapse of Confederate naval forces on the western rivers, Monarch′s mission was accomplished. She was laid up on the Mississippi River below St. Louis, Missouri, after July 1863 and was dropped from the naval list in 1864, but remained in reserve, ready for recall to active service. She was sunk by ice in December 1864, but was refloated and taken to Mound City, Illinois, for dismantling in July 1865. See also Union Army Union Navy Anaconda Plan References American Civil War patrol vessels of the United States Ships of the United States Army Ships of the Union Navy Paddle steamers of the United States Ships built in Ohio 1853 ships Shipwrecks in rivers Shipwrecks of the Mississippi River Shipwrecks of the American Civil War Maritime incidents in March 1861 Maritime incidents in December 1864 United States Ram Fleet