The navy is considered the most important part of the countries that have a large coastline. Navies, large and small, are renowned over the world for carrying out specialized duties such as ensuring the safety of their waters, safeguarding their homelands, and keeping communication links and shipping routes available during times of peace. They demonstrate their naval strength to safeguard their country during times of conflict. A country with a large coastline has to have more strong navies.
Here are the top 20 most powerful navies in the world.