The term "Combined Fleet" typically refers to a naval force that consists of ships and submarines from multiple nations working together for a common purpose. This collaboration can enhance maritime security, improve operational effectiveness, and provide a unified response to threats. Such fleets are often formed during joint military exercises or in response to specific regional challenges. Historically, the most notable example of a Combined Fleet was the Imperial Japanese Navy's Combined Fleet during World War II, which played a significant role in naval battles across the Pacific. Today, modern navies may engage in combined operations through alliances like NATO or partnerships in multinational exercises, promoting interoperability and shared strategies.