What was the method used to acquire Oregon?

The acquisition of Oregon was primarily achieved through a treaty with Great Britain. This process involved diplomatic negotiations which culminated in the Oregon Treaty of 1846. The treaty established the boundary between British North America and the United States at the 49th parallel, resolving ongoing territorial disputes in the region. This peaceful method of reaching an agreement was significant in expanding U.S. territory without resorting to military conflict, which was a common occurrence in other territorial acquisitions at the time.

While military conquest and negotiation with Native Americans are methods that were applied in other historical contexts, they did not play a role in the acquisition of Oregon. Additionally, there was no purchase involved with France, as Oregon was not part of French territory. The approach taken with Oregon reflects a strategic effort by the U.S. to expand its borders through diplomacy, demonstrating a preference for negotiation and treaties over warfare in this case.