1. Mahan believed that the navy is an international service and its important mission is to support and promote the country’s foreign policy.

2. A country’s coastline is part of its boundary. If a country’s territory is easily accessible to the outside world, its people will be more likely to develop outward and interact with the outside world.

Flat terrain and fertile land may make people settle down and be unwilling to join the ocean, like France; on the contrary, it may force people to resort to the sea to make a living, like the Netherlands and Portugal. Island countries and peninsula countries are limited by terrain factors. If they want to become stronger, they must pay attention to the development of sea power.

3. Mahan believes that the purpose of the navy is to fight, and the ultimate goal is to gain control of the sea and control the ocean. Therefore, what the fleet needs is not speed, but powerful attack firepower. A navy with superiority, To control the ocean. Extended information

The theory of sea power proposed by American A.T. Mahan and the need for maritime strategy are highly respected by major naval powers. When World War I broke out in 1914, the navies of the major participating countries had more than 150 capital ships. Small ships equipped with torpedoes became light naval forces capable of destroying large warships.

In the 1920s and 1930s, the navy had its first aircraft carriers and carrier-based aviation, and shore-based aviation also developed. Naval aviation became the main force fighting for maritime air supremacy. At this point, the Navy has developed into a service composed of multiple arms that can conduct three-dimensional operations and contract operations on vast ocean battlefields.

Baidu Encyclopedia-Sea Power Theory