It has been said that war is politics by other means and few would disagree with the Clausewitzian sentiment, but one might also state that diplomacy is warfare by peaceful means. Often diplomacy seeks to gain without violence the same objectives that empires of old sought to gain through war. Relying upon Machiavellian precepts of being feared rather than loved, and by justifying the means by the end results, great diplomats have doggedly pursued national interests, sometimes believing destiny had already prescribed a greater future than present circumstances provided. One such diplomat was William Henry Seward (1801-1872). In 1853, seven years before becoming U.S. Secretary of State for the Lincoln administration, Senator Seward stated in a speech titled The Destiny of America, “Nevertheless it is not in man’s nature to be content with present attainment or enjoyment. You say to me, therefore, with excusable impatience, ‘Tell us not what our country is, but what she shall be. Shall her greatness increase? Is she immortal?’” Steward believed the answer to these questions were the affirmative and would spend his career seeking to increase the greatness of the nation he served.
Like other expansionists, Seward would link U.S. commercial strength with the acquisition of foreign markets and territorial holdings. When Mexico and British Canada proved unfertile soil for acquisition, Seward looked elsewhere. Seward believed that the United States had a destiny to spread its notions of liberty to the new nations breaking free from European imperialism, particularly those liberating themselves from Spain. Unfortunately, he also believed, as many did, that shaking off imperial control did not necessarily mean the people of Latin America were prepared to self-govern. Seward believed the southern neighbors would be better served if they became part of the United States. Seward achieved a piece of his goal by pushing for the purchase of Alaska, and while it was considered folly at the time, the discovery of gold changed how most viewed the acquisition. He had less success in his efforts to secure other territories in the Caribbean and Central America. However, he would be remembered for the tenacity with which he sought U.S. expansion; a tenacity that often diverged from diplomacy and bordered on bullying. Those who were unfortunate to have sparred with Seward would have felt bombarded and under attack, and would have wondered at the fine line Seward drew between diplomacy and war. With a focus firmly on the destiny of U.S. greatness, Seward behaved more like a commanding general than a diplomat. Seward believed the destiny of the United States was not limited to contiguous land of North America, but that it reached far beyond. Eventually Steward’s tenacious diplomacy would be replaced by combat in a war that would acquire some of the territory Seward had desired. His vision of U.S. expansion, while not achieved during his time in office, did influence the direction of U.S. expansion as the nineteenth century drew to a close. Whether through diplomacy or warfare, men like Seward were determined to see the United States fulfill its destiny of greatness.
 Frederick Seward, Seward at Washington as Senator and Secretary of State: A Memoir of His Life, with Selections from His Letters, e-book (New York: Derby and Miller, 1891), 207.
 William Henry Seward, Life and Public Services of John Quincy Adams Sixth President of the United States with Eulogy Delivered before the Legislature of New York, e-book (Auburn, NY: Derby, Miller and Company, 1849), 122-123.
 George C. Herring, From Colony to Superpower: U.S. Foreign Relations Since 1776 (New York: Oxford University Press, 2008), 255-257.