The northern boundary of the United States was created by treaties between the United States and Britain.
The Oregon Treaty is a treaty between the United States and the United Kingdom which was signed on June 15, 1846, in Washington, D.C.
The treaty ended the Oregon boundary dispute by settling the American and British claims to the Oregon Country. Since the Treaty of 1818, this area had previously been occupied by both Britain and the U.S.
the Treaty of 1818, is an international treaty between the United States and the United Kingdom signed in the year 1818.
This treaty settled boundary issues between the United states and The united Kingdom.
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