1863 – (Civil War) Battle of Port Hudson, Louisiana, Begins

Confederate troops had fortified Port Hudson, located 30 miles north of Baton Rouge, Louisiana, to control shipping on the Mississippi River. As at Vicksburg, the artillery was positioned high on bluffs where it could easily destroy passing Union ships. On May 21, 1863, Union troops, including the 4th Wisconsin Infantry, began a six-week-long campaign against Port Hudson.