United States Armed Forces

===Navy modernization===
[[File:U.S. Navy guided-missile frigate FFG(X) artist rendering, 30 April 2020 (200430-N-NO101-150).JPG|thumb|Rendering of {{USS|Constellation|FFG-62}}]]
Like the Marine Corps, the Navy is in the process of overhauling and modernizing its fleet with a renewed focus. While the Navy is continuing to purchase [[Arleigh Burke-class destroyer|''Arleigh Burke''-class destroyer]]s, it is embarking on the [[DDG(X)]] program of guided missile destroyers to replace it and the [[Ticonderoga-class cruiser|''Ticonderoga''-class cruiser]]s. The DDG(X) will include [[directed energy weapon]]s and potentially hypersonic weapons.<ref>{{cite web | url=https://www.nationaldefensemagazine.org/articles/2023/1/11/navy-moves-out-on-ddgx-requirements | title=Navy Moves Out on DDG(X) Requirements }}</ref>

The [[Constellation-class frigate|''Constellation''-class frigate]] will be the first frigates in the U.S. Navy since the [[Oliver Hazard Perry-class frigate|''Oliver Hazard Perry''-class frigate]]s were retired. The ''Constellation''-class frigates are based on the Italian [[FREMM multipurpose frigate]]s and will replace the [[littoral combat ship]]s.<ref name="auto19">{{cite web | url=https://news.usni.org/2022/12/26/top-stories-2022-u-s-navy-acquisition | title=Top Stories 2022: U.S. Navy Acquisition | date=26 December 2022 }}</ref>

[[File:Artist rendering of a Columbia-class ballistic missile submarine, 2019 (190306-N-N0101-125).jpg|thumb|Rendering of a [[Columbia-class submarine|''Columbia''-class]] ballistic missile submarine]]
The Navy is starting development on the [[SSN(X)]] attack submarines, intended to replace the [[Virginia-class submarine|''Virginia''-class]] and [[Seawolf-class submarine|''Seawolf''-class submarine]]s. The [[Columbia-class submarine|''Columbia''-class submarine]]s will begin replacing the [[Ohio-class submarine|''Ohio''-class]] ballistic missile submarines. The acquisition of the ''Columbia''-class submarines is the first priority of the Navy.<ref name="auto13">{{cite web | url=https://www.navy.mil/Press-Office/News-Stories/Article/3052900/keel-laying-ceremony-held-for-first-columbia-class-ballistic-missile-submarine/ | title=Keel Laying Ceremony Held for First Columbia-Class Ballistic Missile Submarine }}</ref><ref name="auto19"/>

With Naval Aviation, the service is continuing to procure additional [[Gerald R. Ford-class aircraft carrier|''Gerald R. Ford''-class aircraft carrier]]s and [[F-35C Lightning II]] stealth fighters. Ultimately, the [[F/A-XX program]] is intended to produce a [[sixth-generation fighter]] to replace the legacy [[F/A-18E/F Super Hornet]]s as part of the Carrier Air Wing and is using the [[Future Vertical Lift]] program to replace its fleet of [[SH-60 Seahawk]] helicopters.<ref name="auto13"/><ref name="auto19"/>

The service is also investing heavily in unmanned platforms, such as [[unmanned surface vehicle]]s, using the [[Ghost Fleet Overlord]] to test the concept. It is also fielding [[unmanned aerial vehicle]]s, such as the land-based [[MQ-4C Triton]] for maritime patrol and the carrier-based [[MQ-25A Stingray]] for [[aerial refueling]], replacing the F/A-18F in the role.<ref name="auto19"/>