The Battle of Drewry's Bluff, also known as the Battle of Fort Darling, or Fort Drewry, took place on May 15, 1862, in Chesterfield County, Virginia, as part of the Peninsula Campaign of the American Civil War. Four Union Navy warships, including the ironclads and , and the United States Revenue Cutter Service's ironclad USRC Naugatuck steamed up the James River to test the defenses of Richmond, Virginia, the Confederate capital. They encountered submerged obstacles, and deadly accurate fire from the batteries of Fort Darling at Drewry's Bluff, which inflicted severe damage on Galena, forcing them to turn back. Background In the spring of 1862, Union Major General George B. McClellan launched an amphibious operation against Richmond by landing troops at Fort Monroe and then marching northwest up the Virginia Peninsula. After the fall of Yorktown and the withdrawal of General Joseph E. Johnston's army up the Peninsula, only the Confederate Navy ironclad prevented Union occupation of the lower James River and Norfolk. When the Confederate garrison at Norfolk was evacuated by Maj. Gen. Benjamin Huger on May 10, Commodore Josiah Tattnall III knew that he could not navigate Virginia through the shallow stretches of the James River toward Richmond, so she was scuttled on May 11 off Craney Island to prevent her capture. This opened the James River at Hampton Roads to Federal gunboats. The only obstacle protecting Richmond from a river approach was Fort Darling on Drewry's Bluff, overlooking a sharp bend down river from the city. The Confederate defenders, including marines, sailors, and soldiers, were supervised by navy Commander Ebenezer Farrand and by army Captain Augustus H. Drewry (the owner of the property that bore his name) of the Southside Heavy Artillery. The eight cannons in the fort, including field artillery pieces and five naval guns, some salvaged from Virginia, commanded the river for miles in both directions. Guns from , including an smoothbore, were just upriver and sharpshooters gathered on the river banks. An underwater obstruction of sunken steamers, pilings, debris, and other vessels connected by chains was placed just below the bluff, making it difficult for vessels to maneuver in the narrow river. Battle On May 15, a detachment of the U.S. Navy's North Atlantic Blockading Squadron, under the command of Commander John Rodgers steamed up the James River from Fort Monroe to test the Richmond defenses. The flotilla consisted of the ironclad gunboats USS