Having won the battle of Blandensburg, British forces set fire to the federal buildings of Washington. Dolley Madison rescued White House valuables and documents shortly before the British burned the White House. The British army next moved on Baltimore, but the British called off the raid after the U.S. repelled a naval attack on Fort McHenry. Madison returned to Washington before the end of August, and the main British force departed from the region in September. The British attempted to launch an invasion from Canada, but the U.S. victory at the September 1814 Battle of Plattsburgh ended British hopes of conquering New York.