"maritime space" is a correct and usable phrase in written English.
It can be used to refer to the area of the ocean that contains navigable waters and the airspace above it, or to the activities and operations occurring on, over, and under the ocean, such as fishing, shipping, and offshore development. For example: "The government has proposed a new plan to regulate maritime space in the region."
Japan and its maritime space.
Argentina repeatedly violated Chilean air and maritime space.
The increased number of human activities within the marine environment and the demand for maritime space has increased to a point where in some parts of the globe the demand for maritime space has exceeded the available area.
Mattis promised to implement Trump's Indo-Pacific strategy by reinvigorating American investment, working to strengthen the rule of law, increasing attention to the maritime space and deepening alliances.
In 2006, Portugal developed a 'National Sea Strategy' that recognized the importance of developing its maritime space while valuing marine habitats and biodiversity.
"This achievement rests above all on openness: openness of trade, openness of ideas, and openness of what I would call the 'common areas' — whether in the maritime, space, or cyber domains".
But even as the Pentagon complies with an order by President Obama to cut $400 billion in military spending by 2023, Mr. Gates said that the Defense Department would find money for "air superiority and mobility, long-range strike, nuclear deterrence, maritime access, space and cyber, and intelligence, surveillance and reconnaissance".
By adapting maritime precedents, space law could make orbital debris removal feasible, once the right economic incentives are in place.
Challenges such as maritime security, space and cyber security, delimitation of the Exclusive Economic Zone (EEZ) have also emerged.
All of this fuelled Indian suspicions of a "string of pearls" strategy designed to choke its own maritime breathing-space.
