attack, valuable documents, including the original Constitution, were removed to Leesburg, Virginia. United States Secretary of War John Armstrong Jr. insisted that the British were going to attack Baltimore rather than Washington, even as British army and naval units were on their way to Washington. Brigadier General William H. Winder, who had burned several bridges in the area, assumed the British would attack Annapolis and was reluctant to engage because he mistakenly thought the British army was twice its size. The inexperienced state militia was easily routed in the Battle of Bladensburg, opening the route to Washington. British troops led by Major General Robert Ross, accompanied by Rear Admiral George Cockburn, the 3rd Brigade attacked and captured Washington with a force of 4,500. On 24 August, after the British had finished looting the interiors, Ross directed his troops to set fire to number of public buildings, including the White House and the United States Capitol. Extensive damage to the interiors and the contents of both were subsequently reported. US government and military officials fled to Virginia, while Secretary of the United States Navy William Jones ordered the Washington Navy Yard and a nearby fort to be razed in order to prevent its capture. Public buildings in Washington were destroyed by the British though private residences ordered spared. Siege of Fort McHenry After taking some munitions from the Washington Munitions depot, the British, boarded their ships and moved on to their major target, the heavily fortified major city of Baltimore. Because some of their ships were held up in the Raid on Alexandria, they delayed their movement allowing Baltimore an opportunity to strengthen the fortifications and bring in new federal troops and state militia units. The "Battle for Baltimore" began with the British landing on 12 September 1814 at North Point, where they were met by American militia further up the Patapsco Neck peninsula. An exchange of fire began, with casualties on both sides. The British Army commander Major Gen. Robert Ross was killed by snipers. The British paused, then continued to march northwestward to face the stationed Maryland and Baltimore City militia units at Godly Wood. The Battle of North Point was fought for several afternoon hours in a musketry and artillery duel. The British also planned to simultaneously attack Baltimore by water on the following day, although the Royal Navy was unable to reduce Fort McHenry at the entrance