treaty of greenvile
James Knox Polk got the British to sign the treaty deciding the Oregon border.
It is a Treaty betwee Great Britain and the US that establishes the border between Canada and the US in what was then called the Oregon Territory.
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No, the last territory acquired by the United States was not the Oregon Territory. The Oregon Territory was acquired in 1846 through a treaty with Great Britain. The final addition to U.S. territory was the purchase of Alaska from Russia in 1867.
Great Britain
spain
The US and Canada signed the Oregon Treaty to end their dispute about the boundaries of the Oregon territory. It set the borders for Canada and the US.
Great Britain
The Oregon Territory 9don't worry this answer came straight from my history textbook
In 1846 under President James K. Polk the U.S. signed a treaty with Britain that gave the U.S. possession of the Oregon territory.
The United States made a treaty with Britain to acquire the Oregon Territory through the Oregon Treaty of 1846. This agreement established the boundary between U.S. and British territories at the 49th parallel, except for the area around Vancouver Island, which remained under British control. The acquisition of the Oregon Territory was significant in expanding U.S. territory westward and fulfilling the concept of Manifest Destiny.