What is the Navy's mission?

The Navy's mission encompasses a range of essential functions that are vital to national security and global stability. The correct choice highlights strategic deterrence, which involves using military capability to prevent adversaries from taking aggressive actions. Sea control refers to the Navy's ability to ensure freedom of navigation and the security of maritime routes. The projection of power ashore signifies the Navy's capacity to deploy and sustain military forces in areas beyond the sea, influencing events on land. Additionally, maintaining a presence at sea helps reassure allies, deter adversaries, and provide options for responding to crises. These elements collectively underscore the multifaceted role of the Navy in ensuring national defense and international maritime security.

The other options, while important aspects of military operations, do not encapsulate the broad mission of the Navy. Humanitarian assistance and disaster relief fall under a specific subset of naval operations but do not represent the overarching mission. Training and readiness of land forces pertain more to the Army's responsibilities. Cybersecurity and intelligence operations, though critical in modern warfare, are not central to the Navy's primary mission and focus mainly on other branches or support roles rather than the Navy's defined objectives at sea.