Britain and Mexico
Yes- Polk settled disputes over the boundary of the Oregon territory with Britain and disputes with Mexico over Texas and California and the land between.
American involvement in Canadian rebellions and border disputes :P
America was invaded by the British...
Maine and Minnesota
The Treaty of 1818 was important to the United States because it solved boundary disputes with Britain. It also allowed Americans to create settlements in Oregon.
1846 The U.S. negotiates with Britain to end a Canadian border dispute. Tribes are not consulted as the 49th Parallel becomes the boundary.
America and Britain decided to divide the Oregon Territory at the 49th parallel during the Oregon Treaty of 1846. This agreement established the boundary between British North America and the United States, effectively giving the U.S. control over what is now the Pacific Northwest, including present-day Oregon, Washington, and parts of Idaho and Montana. The treaty was a resolution to ongoing disputes and was aimed at preventing further conflict over the territory.
control of the Mississippi and Ohio Valleys.
What Boundary did the United States and Great Britain agree on
Britain and the U.S. agreed to form a joint commission to resolve boundary disputes. One result of that agreement was the Treaty of Joint Occupation of Oregon, signed on October 20, 1818.
Great Britain