In an attempt to increase trade and prove itself as an economic and military superpower, the US began to expand overseas and increase its military size; the US believed in International Darwinism and saw these actions as an expansion of Manifest Destiny which led to imperialism. People like William H. Seward pushed to annex Midway Island and purchased Alaska to expand the size of the US. However, imperialism became a controversial debate among the American people throughout the late nineteenth and early twentieth century. Expansionists and Jingoists like Theodore Roosevelt wanted to protect and gain control of other nations including Puerto Rico, Philippines, and Guam, whereas anti-imperialists such as William Jennings Bryan, Mark Twain, and Jane Addams were against entangling the US in unneeded conflicts overseas and depriving other nations of their rights. Thus, while advocates of expansionism wanted to civilize other nations, become a superpower, and improve US unity, oppositions wanted the US to improve domestic conflicts instead of involving itself in foreign affairs and should not force America’s ideals on other nations. During the Spanish-American War, more people were becoming Jingoist imperialists who wanted the US to assert its global dominance. Hoping to further US business interests and expand the Navy’s resources, American merchants, businessmen, and imperialists wanted to invest in Hawaii, Samoa, and especially Cuba. Jingoists wanted Cuba because of its vast