How does mahan equate a powerful navy with the need for territorial expansion?

Alfred Thayer Mahan argues that a powerful navy is essential for a nation to secure its interests and maintain global influence, which often necessitates territorial expansion. He posits that control of strategic maritime routes and coaling stations enhances naval capabilities, enabling a country to project power and protect its trade. This expansion not only secures resources but also establishes a presence in key regions, allowing for greater economic and political leverage. Ultimately, Mahan sees naval strength as a cornerstone of national greatness, inherently linked to the pursuit of new territories.