Multiple choice general knowledge math & puzzles During the U.S. Civil War, which city was known as the "Gibraltar of the Confederacy"? Lafayette, Louisiana Norfolk, Virginia Pensacola, Florida Vicksburg, Mississippi Reveal answer Fill a bubble to check yourself D Correct answer Explanation Vicksburg, Mississippi, was called the 'Gibraltar of the Confederacy' because of its strategic location on a high bluff overlooking a bend in the Mississippi River, making it nearly impregnable to naval attack until its fall in 1863.