A British squadron made an attempt to ascend the Potomac in July 1813 but turned back after meeting some resistance from militia and encountering the treacherous Kettle Bottom Shoals. In Washington, concern for the safety of the Capital caused the President and Secretary of the Navy to visit Fort Warburton. Afterward Major Pierre L'Enfant was sent to evaluate the fort and reported "the whole original design was bad and it is impossible to make a perfect work of it by any alterations." The Secretary of the Navy ordered and additional water battery of 9 guns to be built and manned by seamen under Lieutenant Decius Wadsworth. The name Fort Washington was gaining popularity but official correspondence often indicated Warburton, Digges Point, the Fort at Warburton, Fort Warburton and Fort Washington above the date line.
In April, while Sir John Cockburn's squadron was busy harassing the Atlantic and Chesapeake cities, Paris fell to the allied forces. The war with France was over so additional British troops were free to pursue the war in America. General Robert Ross, a veteran of the Peninsula War, was sent to America with orders to "effect a diversion on the coast of the United States of America in favor of the army employed in the defense of Upper and Lower Canada."
In early August part of the naval squadron entered the Patuxent River and sailed to Benedict, Maryland. The army landed and began to march northward. The remainder of the squadron under Captain James A. Gordon began ascending the Potomac River. The Secretary of War, General Armstrong did not see any military value to Washington. He believed that the British movement toward the Capital was a ruse and insisted that their destination was Baltimore so no effort was made to strengthen the Washington defenses.