The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the world's most powerful navy with the largest displacement, at 4.5 million tons in 2021. [9]

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美國海軍（英語： United States Navy ，縮寫： USN 或 U.S. Navy ），是一个美军 軍種，負責管理所有与海軍有关的事务。其职责为：“配备、训练和武装一支有能力赢得战争、阻止入侵和保证海域自由的海军作战部队。

The United States is a maritime nation, and the U.S. Navy protects America at sea. Alongside our allies and partners, we defend freedom, preserve economic prosperity, and keep the seas open...

The Department of the Navy will recruit, train, equip, and organize to deliver combat ready Naval forces to win conflicts and wars while maintaining security and deterrence through sustained ...

Jan 20, 2025 · The United States Navy (USN) is the branch of the United States armed forces charged with the defense of the country at sea, the seaborne support of the other U.S. military services, and the maintenance of security on the seas …

美国海军（英语：United States Navy，缩写：USN或U.S. Navy）是美国武装力量的一个重要军种，负责管理所有与海上军事行动有关的事务，海军部设在五角大楼内。

The mission of the Navy is to maintain, train and equip combat-ready Naval forces capable of winning wars, deterring aggression and maintaining freedom of the seas. Domination of the maritime...

The Navy’s structure is not as straightforward as the other military services — it’s pretty complex. There are two chains of command: operational and administrative.