How did rivalry with britain affect the american decision to annex texas, the oregon dispute, and lesser controversies of the period?

During the 1840s, conflicts between the United States and Britain heightened. Texas, the autonomous republic, turn out to be the emphasis of many foreign powers. While Mexico supposed it to be a revolting area they would later recuperate power over it, they really had already lost control of it. Britain became fascinated in it for many motives. Worried for Britain's purposes in controlling Texas, Tyler accepted joint resolution that detained Texas into the United States before Britain could have a chance. Pressures with Britain also biased America's choice to deliberate for a bigger part of the Oregon territory. While the British had solid assets to the land, American population grew quickly to the area. Sooner or later, the negotiated on the line of 49, acquiring territory while evading war. Far ahead, when Mexico declined to sell Mexico to Polk, there were reports that Britain was around to acquire California. This would mean that the United States would not be capable to protect the Monroe Doctrine. This inclined Polk's decision to hurry up the announcement of war against Mexico.