What operational environment do "blue water" operations refer to?

"Blue water" operations refer to military activities that take place in deep ocean waters, away from the influence of coastal landmasses. This environment is characterized by vast expanses of open water, where naval forces can perform a variety of missions, including power projection, maritime security, and amphibious operations, all while maintaining significant distances from the shore.

Engaging in blue water operations allows naval forces to leverage the strategic advantages of open seas, such as stealth and maneuverability, which are essential for operations that need to avoid detection by adversaries or require travel over long distances. Additionally, blue water operations support a nation's global presence and the ability to respond to international crises, projecting power and maintaining freedom of navigation.

In contrast, coastal operations are conducted in littoral areas, port operations occur within harbor limits, and riverine operations focus on inland waterways, none of which fit the characteristics of blue water engagements.