During my recent visit to the USA, I traveled through the deep south states. During this journey, I visited several civil war battle fields, among which was Vicksburg. National Military Park is located uphill and the park is full of monuments. USS Cairo Museum is part of the park. Remnants of the iron clad USS Cairo are shown on this location. The USS Cairo was an iron clad navy gunboat and the vessel played an important role in the siege of Memphis. After Memphis was conquered by the Union forces, the USS Cairo continued to patrol the Mississippi river. On December 12, 1862, the USS Cairo struck a torpedo while it was clearing mines. The vessel was forgotten, but re-discovered in 1956. Eventually, the ship was recovered and restored for exhibition at the National Military Park near Vicksburg.