This can be linked to the Mexican-American War because they both created the gap between the two countries. In the Mexican-American War, because of America's belief in manifest destiny, Americans believed they had the right to conquer their land from sea to sea. This would have divided the two countries because Mexico did not want to give up the land, but due to the American push to move forward, a war broke out. This is similar to the Civil War because people were removed because the North believed that slavery should be abolished, but the South thought that