Savannah, Georgia: Savannah’s location on the Atlantic makes it a prime port for the United States but what makes in a important sea town also makes it vulnerable to an attack from the sea. So to help combat a sea attack, Fort James Jackson was constructed up river to help defend the city. Under threat of attack by either England or France, President Thomas Jefferson ordered the nation fortify its coast. So at the site of an old English battery from the American Revolution, Fort James Jackson was constructed. It took almost four years to complete the fort, opening in 1811. Combined with Fort Pulaski and Fort McAllister, Fort Jackson was the last line of defense for the city of Savannah. Completed in time for the War of 1812, it did not see action until the Civil War. After being bombarded by Union ships, Fort Jackson was overtaken by the Union troops in 1864. It would be under Union control throughout the entire occupation of Savannah. Fort Jackson remained active for the ...