Everything Everywhere Daily: History, Science, Geography & More - The Mahan Doctrine
Episode Date: December 29, 2025In 1890, an obscure professor at the US Naval War College published a book that at first seemed fairly innocuous. However, it turned out his book found an audience. An extremely powerful audience. ... Its success led to further research, which in turn ushered in a revolution in naval warfare, which influenced the world’s great powers for over a century. Learn more about the Mahan Doctrine and how it influenced 20th-century warfare on this episode of Everything Everywhere Daily. Sponsors Quince Go to quince.com/daily for 365-day returns, plus free shipping on your order! Mint Mobile Get your 3-month Unlimited wireless plan for just 15 bucks a month at mintmobile.com/eed Chubbies Get 20% off your purchase at Chubbies with the promo code DAILY at checkout! Aura Frames Exclusive $35 off Carver Mat at https://on.auraframes.com/DAILY. Promo Code DAILY DripDrop Go to dripdrop.com and use promo code EVERYTHING for 20% off your first order. Uncommon Goods Go to uncommongoods.com/DAILY for 15% off! Subscribe to the podcast! https://everything-everywhere.com/everything-everywhere-daily-podcast/ -------------------------------- Executive Producer: Charles Daniel Associate Producers: Austin Oetken & Cameron Kieffer Become a supporter on Patreon: https://www.patreon.com/everythingeverywhere Discord Server: https://discord.gg/UkRUJFh Instagram: https://www.instagram.com/everythingeverywhere/ Facebook Group: https://www.facebook.com/groups/everythingeverywheredaily Twitter: https://twitter.com/everywheretrip Website: https://everything-everywhere.com/ Disce aliquid novi cotidie Learn more about your ad choices. Visit megaphone.fm/adchoices
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In 1890, an obscure professor at the U.S. Naval War College published a book that at first seemed fairly innocuous.
However, his book found an audience, an extremely powerful audience.
And its success led to further research, which in turn ushered in a revolution in naval warfare,
which influenced the world's greatest powers for over a century.
Learn more about the Mahan doctrine and how it influenced 20th century warfare on this episode of Everything Everywhere Daily.
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Alfred Thayer Mahan was an unlikely person to lead a revolution in warfare.
Born in 1840 to a family steeped in military tradition,
he graduated from the U.S. Naval Academy in 1859,
and served with modest distinction during the Civil War.
His career was unremarkable until 1885,
when he was appointed to lecture on naval history and tactics
at the newly established Naval War College in Newport, Rhode Island.
It was in preparing his lectures that Mahan experienced his intellectual breakthrough.
Studying the Anglo-French conflicts of the 17th and 18th centuries, he discerned patterns
that previous historians had overlooked. In 1890, he published these insights in The Influence of
Sea Power Upon History, 1660 to 1783, a book that would become one of the most influential
on military strategy ever written. Mahan's central thesis was deceptively simple. Nations that
controlled the seas controlled their destinies. But his argument was more sophisticated,
than just naval cheerleading. He identified six fundamental conditions affecting sea power.
One, geographical position. Two, coastal geography, including natural harbors and resources.
Three, extensive territory. Four, population size. Five, national character. And six, the character of
government. A nation possessing favorable conditions in these areas, he argued, was positioned to achieve
maritime dominance. The doctrine rested on four key principles. First,
Command of the Sea was not about controlling every ocean, but about defeating the enemy's battle fleet in decisive engagements,
thereby achieving the freedom to use sea lanes while denying them to adversaries.
Second, commerce and naval power were inseparable. A thriving merchant marine provided both wealth and trained seamen for wartime service.
Third, nations needed overseas bases and coaling stations to project power globally.
And fourth, a powerful battleship fleet concentrated for decisive action was submitted.
superior to a dispersed fleet of cruisers formed on commerce rating.
Mahan developed these ideas further in subsequent works,
including the influence of sea power upon the French Revolution and Empire 1793 to 1812,
which he published in 1892, and numerous other essays.
For the United States, he advocated a large modern navy built around capital ships,
a canal across Central America to facilitate fleet movement,
overseas bases in the Caribbean and Pacific, and an assertive foreign policy to protect and expand
American commercial interests. Mahan's theories found their most immediate and enthusiastic audience in his
own country. The United States in the 1890s was emerging from post-Civil War introspection and
isolation, and was looking outwards with growing ambition. Mahan's work provided intellectual
justification for expansion at precisely the moment American leaders were contemplating it. His influence
on Theodore Roosevelt can't be overstated.
Roosevelt reviewed the influence of sea power enthusiastically, and the two men became friends
and correspondence.
When Roosevelt served as Assistant Secretary of the Navy from 1897 to 1898, he pushed for
naval expansion based directly on Mahan's principles.
As president from 2001 to 1909, Roosevelt oversaw the construction of the Great White Fleet,
transforming the U.S. Navy from a coastal defense force into a world-class battle fleet.
The Spanish-American War of 1898 seemed to vindicate Mahan's theories perfectly.
Admiral Dewey's decisive victory at Manila Bay and the destruction of the Spanish fleet at Santiago
demonstrated the value of concentrated naval power in achieving swift strategic results.
The war's outcome brought the United States overseas territories, including Puerto Rico, Guam, and the Philippines,
creating the colonial infrastructure that Mahan had advocated.
The construction of the Panama Canal completed in 1914 was another Mahan project that was realized.
Mahan had long argued that such a canal was essential for American naval strategy,
allowing the fleet to move rapidly between the Atlantic and Pacific.
Roosevelt made it a centerpiece of his presidency,
engineering Panamanian independence from Colombia when negotiation stalled,
then securing perpetual control of the canal zone.
America's naval construction in the 20th century closely followed Mahan's
prescription. The U.S. built increasingly powerful battleships, established bases throughout the
Caribbean and Pacific, and organized its fleet for decisive battle. By World War I, the United States
possessed the world's third largest navy. Although the United States adopted the Mahan
doctrine, it was initially more celebrated in Britain than in America. The Royal Navy had practiced
many of Mahan's principles for centuries without articulating them so systematically.
Mahan provided historical validation for Britain's maritime supremacy and intellectual ammunition against those who question naval expenditures.
British naval officers and politicians embraced Mahan with fervor.
The book became required reading at the Royal Naval College.
Political leaders from both parties cited Mahan in parliamentary debates about naval estimates.
The doctrine reinforced Britain's commitment to the two power standard, meaning a fleet larger than the next two-nevail.
navies combined. Admiral Sir John Fisher, the first sea lord from 1904 to 1910,
revolutionized the Royal Navy along lines that both followed and departed from Mahan.
The HMS dreadnought launched in 1906 embodied Mahan's preference for concentrated firepower
in capital ships. But Fisher also advocated for submarines and developed the battle cruiser
concept, showing more flexibility than strict Mahanian orthodoxy might suggest. A battle cruiser was a type
of early 20th century warship built with battleship-sized guns and speed prioritized over armor.
It was intended to outrun anything that could outgun it and outgun anything that could catch it.
The British also faced a challenge Mahan had not fully addressed, how to maintain sea control against new technologies.
Mines, torpedoes, and eventually submarines threatened the decisive fleet engagement that Mahan envisioned.
The Battle of Jutland in 1916, the largest surface engagement of World War I,
demonstrated both the validity and limitations of Mahan's theories.
Britain maintained strategic sea control,
but the anticipated decisive Trafalgar-like victory never materialized.
Germany's embrace of Mahan was enthusiastic, yet ultimately disastrous.
Kaiser Wilhelm I.2 read Mahan's work and reportedly kept a copy on his nightstand.
Admiral Alfred von Terpitz, Secretary of State for the Navy from 1897 to 1916,
use Mahanian arguments to justify the massive fleet expansion that would fundamentally alter European
geopolitics. Terpitz's risk theory was essentially Mahanian doctrine adapted to Germany's position.
He argued that Germany needed a battle fleet large enough that Britain would not risk engaging it,
even if Britain would likely win, because the damage sustained would leave Britain vulnerable to third powers.
The fleet would give Germany diplomatic leverage and protect its growing o'clock.
overseas commerce. And the plan backfired catastrophically. Rather than intimidating Britain
into accommodation, German naval expansion drove Britain into alliances with France and Russia.
The naval race consumed resources that Germany might have used to strengthen its army
while failing to achieve its strategic objective at sea. When war came in 1914, the German high seas
fleet remained largely bottled up in port, unable to challenge British command of the seas effectively.
The German experience revealed a limitation in Mahan's framework.
He had analyzed how maritime powers achieved dominance,
but provided less guidance for continental powers seeking to challenge established naval superiority.
Germany discovered that building a Mahanian fleet without the geographical advantages,
coastal infrastructure, or maritime commercial base of an established sea power,
was a recipe for strategic failure.
Japan's adoption of Mahan's principles was perhaps the most thorough and consequential
outside of the United States. The influence of sea power was translated into Japanese in 1896
and became immediately influential among Japanese naval officers and political leaders. Japan's
situation seemed tailor-made for Mahan's strategy. As an island nation dependent upon imports and
seeking to expand its influence in Asia, Japan needed naval power to achieve its ambitions.
The Japanese Navy studied Mahan intensively and modeled itself on the Royal Navy, which Mahan had
celebrated. The Russo-Japanese War of 1904 to 1905 provided stunning validation of Mahanian
principles in Asian waters. The Japanese annihilation of the Russian Baltic fleet at the Battle of
Tsushima in May of 1905, which I covered in a previous episode, was precisely the decisive
fleet engagement that Mahan had theorized about. Japan's victory, achieved through superior
training, tactical skill, and concentration of force, demonstrated that an Asian power applying
Mahanian doctrine could defeat a European Empire.
Japan's naval strategy throughout the 20th century remained fundamentally Mahanian.
Japan developed a powerful battleship fleet, established bases throughout the Pacific,
and planned for a defensive engagement with its likely adversary the United States.
The Washington Naval Treaty of 1920, which limited battleship construction, was viewed by
Japanese naval officers through a Mahanian lens as an attempt to prevent Japan from achieving the 70%
ratio to the United States Navy that they believed was necessary for competitive strength.
Interestingly, Japan's ultimate challenge to American power in World War II began with a carrier-based
air attack on Pearl Harbor, representing a technological evolution beyond Mahan's battleship-centric
vision. Yet the underlying strategic logic remain Mahanian, achieved decisive superiority at the
war's outset to secure control of all vital sea lanes and resource areas.
The war's outcome, with American naval power progressively strangling Japan's island economy,
vindicated Mahan's core insight about maritime vulnerabilities.
Not all nations embraced Mahan's doctrine enthusiastically.
France and Russia, both possessing significant navies, but fundamentally continental powers,
found Mahan's theories less applicable to their strategic circumstances.
French naval theorists, like Admiral Raoul Kastak, engaged critically with Mahan,
While acknowledging his contributions, Kastex argued that Mahan over-emphasized decisive battle
and undervalued commerce rating in what the French called Gerd de Korses.
For France, which could never match Britain's naval power and face threats on land from Germany,
a pure Mahanian strategy wasn't practical.
French naval policy remained divided between battle fleet advocates and those who favored submarines
and cruisers for commerce warfare.
Russia's relationship with Mahanian doctrine was complex and ultimately.
tragic. Russia's naval officers studied Mahan and some advocated for a powerful fleet. However,
Russia's vast land borders and limited ice-free ports made naval power secondary to land forces.
The destruction of Russia's Pacific and Baltic fleets in the Russian-Japanese War demonstrated
the risks of pursuing naval power without supporting conditions that Mahan had identified as necessary.
After the Russian Revolution, Soviet naval strategy evolved into something quite distinct from Mahan.
While Stalin briefly pursued a large surface fleet in the late 1930s, Soviet doctrine generally emphasized submarines,
coastal defenses, and naval aviation rather than command of the seas through battle fleet supremacy.
The Cold War saw Mahan's theories adapted to new circumstances.
American naval strategy emphasized carrier battle groups and nuclear-powered submarines,
technologies that Mahan never imagined, yet the underlying concept of controlling the seas to project power remained Mahanian.
Soviet attempts to challenge American naval dominance were essentially efforts to overcome America's Mahanian advantages.
China's naval expansion in the 21st century has been explicitly compared to Mahanian sea power theory.
Chinese strategists study Mahan intensively, and China's naval expansion, artificial island bases in the South China Sea,
development of blue water capabilities, and attention to controlling maritime trade routes, all aligned with Mahan's principles.
India studies Mahan, as it builds a modern navy to influence the Indian Ocean as well.
The string of pearl strategy of ports across the Indian Ocean mirrors Mahon's emphasis on
coaling stations and naval bases.
Critics have argued that Mahan over-emphasized naval power at the expense of other instruments of national power,
that his focus on decisive battles was somewhat romanticized and that technical changes had undermined
many of his specific prescriptions.
His work is also criticized for providing intellectual cover for imperialism and aggressive foreign policies.
Nevertheless, Mahan's core insights retain remarkable power.
Maritime commerce remains the lifeblood of the global economy with over 80% of world trade by volume traveling by sea.
Nations still compete for influence over strategic waterways.
Naval power remains essential for projecting force and protecting interests far from home.
The ability to control or deny the use of the seas continues to confer strategic advantages.
The Mahan doctrine has shaped military thinking through two world wars, the Cold War, and many other minor conflicts.
While most people have never heard of Alfred Thayer Mahan, his ideas have helped shape the world over the last 125 years.
The executive producer of Everything Everywhere Daily is Charles Daniel.
The associate producers are Austin Otkin and Cameron Kiefer.
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