The term "admiral of the fleet" refers to the highest rank in the navy. However, there are different names for this individual in various countries. In the United Kingdom, this position is also known as the First Sea Lord. In the United States, the equivalent rank is the Fleet Admiral. Other countries have their own terms, such as the Japanese Marshal Admiral or the Spanish Almirante General. Regardless of the name, the admiral of the fleet is responsible for strategizing and leading naval operations, commanding fleets of ships and overseeing their movement. They have earned their position after years of service, experience, and mastery of naval tactics.