No, but the British were happy to threaten U.S. control over marginal areas. They maintained armed outposts in the Northwest Territory until 1795, and continued arming and supporting an anti-American confederacy in the region until the end of the War of 1812. The British also armed and trained black and Indian militias in Florida. The Spanish also maintained an active effort to roll back U.S. expansion; for example, the Spanish bankrolled a secessionist movement in Kentucky which offered the slim possibility of splitting the United States on the Appalachian divide.

The rapid expansion of U.S. power, along with the collapse of its French and Spanish colonial rivals, presented Britain with new opportunities and strategic dilemmas. In many ways, U.S. and British interests coincided. As a result, the two nations rapidly reached a rapprochement after the War of 1812, and three decades later the 1842 Webster-Ashburton Treaty and the 1846 Oregon Treaty resolved the last disputes over territory between the United States and Great Britain.

Oh, except for the 1859 Pig War.