...ed by the Army of the Potomac, lying along the Rapidan, was in the possession of the enemy. Along the sea-coast, footholds had been obtained at Plymouth, Washington, and Newbern, in North Carolina; Beaufort , Folly, and Morris Islands, Hilton Head, Fort Pulaski, and Port Royal, in South Carolina; Fernandina and St. Augustine, in Florida. Key West and Pensacola were also in our possession, while all the...