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Alfred Thayer Mahan, 1897
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Commissioned as a Lieutenant in 1861, Mahan served the Union in the American Civil War as an officer on Congress, Pocahontas, and James Adger, and as an instructor at the Naval Academy. In 1865 he was promoted to Lieutenant Commander, and then to Commander (1872), and Captain (1885).
Despite his professed success in the Navy, his skills in actual command of a ship were not exemplary, and a number of vessels under his command were involved in collisions, with both moving and stationary objects. Despite his affection for old square-rigged vessels, he did not like smoky, noisy steamships of his times and he tried to avoid active sea duty. On the other hand, the books he wrote ashore made him arguably the most influential naval historian.
Upon being published, Mahan struck up a friendship with pioneering British naval historian Sir John Knox Laughton, the pair maintaining this relationship through correspondence and visits when Mahan was in London. Mahan was later described as a 'disciple' of Laughton, although the two men were always at pains to distinguish between each other's line of work, Laughton seeing Mahan as a theorist while Mahan called Laughton 'the historian'.
Mahan's objective was a fleet capable of destroying the enemy's main force in a single, decisive battle. Afterwards, reinforcing a blockade against enemy merchant ships and hunting their remaining lighter ships would be feasible, because, with their heavy ships sunk, the enemy would be incapable of rebuilding.
Moreover, the weaker combatant's goal is delaying such a climactic, decisive battle; while his fleet remained a threat, the enemy could not risk dividing forces to close sea trade routes. Thus, the strategy of keeping a navy in port, to threaten rather than act.
Mahan's views were shaped by the eighteenth century naval wars between France and Britain, where British naval superiority eventually defeated France, consistently preventing invasion and blockade, (see Napoleonic war: Battle of Trafalgar and Continental System).
To a modern reader, the emphasis on controlling seaborne commerce is a commonplace, but, in the nineteenth century, the notion was radical, especially in a nation entirely obsessed with expansion on to the continent's western land. On the other hand, Mahan's emphasising sea power, as the crucial fact behind Britain's ascension, neglected the well-documented roles of diplomacy and armies; Mahan's theories could not explain the success of terrestrial empires, such as Bismarckian Germany.[3]
Ideologically, the United States Navy initially opposed replacing its sailing ships with steam-powered ships after the Civil War, however, Mahan argued that only a fleet of armoured battleships might be decisive in a modern war. According to the decisive-battle doctrine, a fleet must not be divided; Mahan's work encouraged technological improvement in convincing opponents that naval knowledge and strategy remained necessary, but that domination of the seas dictated the necessity of the speed and predictability of the steam engine.
His books were greatly acclaimed, and closely studied in Britain and Imperial Germany, influencing their forces build up before World War I. Mahan influenced the naval portion of the Spanish-American War, and the battles of Tsushima, Jutland, and the Atlantic. His work influenced the doctrines of every major navy in the interwar period; The Influence of Seapower Upon History, 1660-1783 was translated to Japanese [4] and used as a textbook in the Imperial Japanese Navy(IJN). This strongly affected the IJN's Pacific War conduct, emphasising the "decisive battle" doctrine — even at the expense of protecting trade.
The premise that a reserve force is incapable of recovering from an initial, overwhelming defeat was refuted by the U.S. Navy's recovering from the Japanese attack at Pearl Harbor, Hawaii. The IJN's pursuit of the "decisive battle" was such that it contributed to Imperial Japan's defeat in 1945, [5][6] and so rendered obsolete the doctrine of the decisive battle between fleets, because of the development of the submarine and the aircraft carrier. [7]
Nevertheless, Mahan's concept of sea power extended beyond naval superiority; that in peace time, states should increase production and shipping capacities, acquire overseas possessions — either colonies or privileged access to foreign markets — [8] yet stressed that the number of coal fuel stations and strategic bases should be few, not to drain too many resources from the mother country. [9]
Mahan continued to write voluminously and received honorary degrees from Oxford, Cambridge, Harvard, Yale, Columbia, Dartmouth, and McGill.
In 1902 Mahan invented the term "Middle East", which he used in the article "The Persian Gulf and International Relations", published in September in the National Review.
He became Rear Admiral in 1906 by an act of Congress promoting all retired captains who had served in the Civil War. At the outbreak of World War I, he initially engaged in the cause of Great Britain, but an order of President Woodrow Wilson prohibited all active and retired officers to publish comments on the war. Mahan died of heart failure on December 1, 1914.