Two hundred years ago this summer, the United States suffered the worst military humiliation in its history. The white flag of surrender would fly over an American city as politicians accused the U.S. Army of treason and cowardice in the face of an inferior enemy.

The story of what happened during August 1812 has its roots in the time before war was declared. A group known as the “war hawks” demanded we fight England over sailors’ rights and impressment, but their real aim was empire.