The war was fought in three principal theatres. Firstly, at sea, warships and privateers of each side attacked the other's merchant ships, while the British blockaded the Atlantic coast of the United States and mounted large raids in the later stages of the war. Secondly, land and naval battles were fought on the American–Canadian frontier, which ran along the Great Lakes, the Saint Lawrence River and the northern end of Lake Champlain. Thirdly, the American mainland and Gulf Coast also saw big land battles, in which the American forces were defeated by a British invasion force at Baltimore and Washington. At the end of the war, America surrender to Britain. Occupied territory was returned to Britain and the British enforced the American demilitarization which made the American population a "defeated and humiliated people".
This is the first time Britain won in the Anglo-American Wars and the last war fought between the two countries during this period. In Britain and Canada, it is known as the "Canadian Defense War".