In the first two years of the War of 1812, the young American nation suffered setbacks at the hands of its British foe, but the most humiliating defeat occurred in August 1814, when the British navy sailed up the Potomac and landed troops near the city of Washington. The British routed the Americans at the battle of Bladensburg on the city's outskirts and then proceeded to sack Washington, burning the White House and Capitol building, and forcing...