"The Interest of America in Sea Power, Present and Future" by A. T. Mahan is a book that looks at America's need to have a strong navy as it grows in the world. It talks about how in the past, Americans mostly cared about what happened inside the country and protected their own businesses. But Mahan thought that because America had so many resources and factories, it needed to start trading with other countries. He pointed out that other European countries were trying to take over different parts of the world, so America needed a powerful navy to keep its businesses safe and protect its trade routes. The book argues that America needs to choose whether it will hide away from the world or become a powerful sea nation.

The Interest of America in Sea Power, Present and Future
By A. T. (Alfred Thayer) Mahan
As global powers rise, a nation must decide if it will build a mighty fleet to protect its interests, or remain isolated and vulnerable.
Summary
About the AuthorAlfred Thayer Mahan was a United States naval officer and historian, whom John Keegan called "the most important American strategist of the nineteenth century." His 1890 book The Influence of Sea Power Upon History, 1660β1783 won immediate recognition, especially in Europe, and with the publication of its 1892 successor, The Influence of Sea Power Upon the French Revolution and Empire, 1793β1812, he affirmed his status as a globally-known and regarded military strategist, historian, and theorist. Mahan's works encouraged the development of large capital ships β eventually leading to dreadnought battleships β as he was an advocate of the 'decisive battle' and of naval blockades. Critics, however, charged him with failing to adequately explain the rise of largely land-based empires, such as the German or Ottoman Empires, though Mahan did accurately predict both empires' defeats in World War I. Mahan directly influenced the dominant interwar period and World War II-era Japanese naval doctrine of the "decisive battle doctrine" , and he became a "household name" in Germany. He also promoted American control over Hawaii though he was "lukewarm" in regards to American imperialism in general. Four U.S. Navy ships have borne his name, as well as various buildings and roads; and his works are still read, discussed, and debated in military, historical, and scholarly circles.
Alfred Thayer Mahan was a United States naval officer and historian, whom John Keegan called "the most important American strategist of the nineteenth century." His 1890 book The Influence of Sea Power Upon History, 1660β1783 won immediate recognition, especially in Europe, and with the publication of its 1892 successor, The Influence of Sea Power Upon the French Revolution and Empire, 1793β1812, he affirmed his status as a globally-known and regarded military strategist, historian, and theorist. Mahan's works encouraged the development of large capital ships β eventually leading to dreadnought battleships β as he was an advocate of the 'decisive battle' and of naval blockades. Critics, however, charged him with failing to adequately explain the rise of largely land-based empires, such as the German or Ottoman Empires, though Mahan did accurately predict both empires' defeats in World War I. Mahan directly influenced the dominant interwar period and World War II-era Japanese naval doctrine of the "decisive battle doctrine" , and he became a "household name" in Germany. He also promoted American control over Hawaii though he was "lukewarm" in regards to American imperialism in general. Four U.S. Navy ships have borne his name, as well as various buildings and roads; and his works are still read, discussed, and debated in military, historical, and scholarly circles.