Which of the following describes the maritime domain?

The maritime domain encompasses a broad variety of aquatic environments, notably including oceans, seas, and bays, as well as the airspace that exists above these water bodies. This definition underscores the interconnectedness of air and sea operations, vital for understanding military strategy, commerce, and environmental stewardship.

Considering the other options, coastal land regions are part of the broader geography but do not fully encompass the maritime domain, which is primarily focused on the water itself. Navigational rivers and lakes pertain only to areas of freshwater and do not reflect the definition, which must include saltwater bodies. Furthermore, referring to exclusively international waters neglects significant portions of the maritime domain that relate to territorial waters, which are crucial for understanding national boundaries and jurisdiction.