What does the term "blue water navy" refer to?

The term "blue water navy" specifically refers to naval operations that occur in deep ocean waters, beyond the confines of coastal areas and territorial seas. This classification of navy is capable of operating in open ocean rather than being limited to coastal or shallow waters. A blue water navy is characterized by its ability to project power over vast distances and to engage in extended missions away from home ports, which is significant for maintaining maritime security, conducting logistics, and participating in international naval operations.

The context in which "blue water navy" is often used also highlights the contrast with "brown water navy," which refers to naval operations in coastal and riverine areas. Understanding these distinctions is crucial for comprehending naval strategies and capabilities in warfare and defense operations.