Fort Pulaski National Monument is located on Cockspur Island between Savannah and Tybee Island, Georgia. It preserves Fort Pulaski, the place where the Union Army successfully tested rifled cannon in combat during the American Civil War in 1862, the success of which rendered brick fortifications obsolete. The fort was also used as a prisoner-of-war camp.

Tybee Island is a city and a barrier island in Chatham County, Georgia, 18 miles (29 km) east of Savannah. The name "Tybee Island" is used for both the island and the city, but geographically they are not identical: only part of the island's territory lies within the city.