Original sentence: The naval battle at Fort Pillow, Tennessee (sometimes known as the engagement at Plum Point Bend) took place on the Mississippi River between ships of the  Confederate River Defense Fleet, which consisted of a number of wooden sidewheel paddleboats converted to naval rams, and ships of the Union (American Civil War Mississippi River Squadron, which consisted of a number of ironclads, approximately four miles above Fort Pillow, Tennessee on 10 May 1862, during the American Civil War
Edited sentence: The naval battle at Fort Pillow, Tennessee (sometimes known as the engagement at Plum Point Bend) took place on the Mississippi River between ships of the  Confederate River Defense Fleet, which consisted of a number of wooden sidewheel paddleboats converted to naval rams, and ships of the Union Mississippi River Squadron, which consisted of a number of ironclads, approximately four miles above Fort Pillow, Tennessee on 10 May 1862, during the American Civil War