Which figure emphasized sea power theory?

• A. Alfred Thayer Mahan
• B. Horatio Nelson
• C. John Paul Jones
• D. Chester Nimitz

Answer: (A)

Alfred Thayer Mahan is the figure who emphasized sea power theory. Sea power theory holds that a nation’s strength and global influence come from naval dominance, secure control of sea lines of communication, and the ability to project power overseas and protect its trade. Mahan argued that naval strength, supported by a capable merchant marine and strategic overseas bases, enables economic prosperity and diplomatic leverage, shaping a nation’s rise to power.

This idea is most associated with his influential work, The Influence of Sea Power Upon History, where he shows how naval supremacy helped great powers build and sustain empires. While the other names are celebrated naval leaders, they are known for leadership and battles rather than articulating a formal theory linking naval power to national greatness.