The Mexican War---Was It in the National Interest? Most Americans were advocates of expanding the Union to make a larger stronger country, but some also saw the Mexican War as a barefaced plot to expand slavery; however, the Mexican War was seen as something that was necessary to settle disputes between the two countries, and through the support of the "Manifest Destiny," the unresolved conflict that took place between the Texans and Mexicans in the …showed first 75 words of 718 total…

…showed last 75 words of 718 total…a necessity. Polk tried time and time again to negotiate peace but his vision of a better America and respected stubbornness allowed him to keep his mind set for the interest of the American people. The manifest destiny, Texan's previous conflicts with the Mexico government, and Polk's vision and continued efforts for peace showed that the American people were in support of the Mexican War and it was in the national interest to declare war.