 Complete the following phrase:  Fort Fisher was a Confederate fort during the American Civil War. It protected the vital trading routes of the port at Wilmington, North Carolina, from 1861 until its capture by the Union in 1865. The fort was located on one of Cape Fear Rivers two outlets to the Atlantic Ocean on what was then known as Federal Point or Confederate Point and today is known as Pleasure Island. The strength of Fort Fisher led to its being called the Southern Gibraltar and the 