With most of its army in Europe fighting Napoleon, Britain adopted a defensive strategy. American prosecution of the war effort suffered from its unpopularity, especially in New England, where it was derogatorily referred to as "Mr. Madison's War". American defeats at the Siege of Detroit and the Battle of Queenston Heights thwarted attempts to seize Upper Canada, improving British morale. American attempts to invade Lower Canada and capture Montreal also failed. In 1813, the Americans won the Battle of Lake Erie, gaining control of the lake, and at the Battle of the Thames defeated Tecumseh's Confederacy, securing a primary war goal. A final American attempt to invade Canada was fought to a draw at the Battle of Lundy's Lane during the summer of 1814. At sea, the powerful Royal Navy blockaded American ports, cutting off trade and allowing the British to raid the coast at will. In 1814, one of these raids burned the capital, Washington, although the Americans later repulsed British attempts to invade New England and capture Baltimore.
