The Design for Undersea Warfare (DUSW) Update 1 calls for “new capabilities that trick, jam, or blind adversary sensors, disrupt cyber systems, [and] cripple targets without killing them.”1 For this and other reasons, the submarine force needs to expand “Neptune’s reach” into the electromagnetic (EM) spectrum and cyber-warfare domains. We must enlist the disruptive technology of directed-energy weapons—the game-changing technologies that give the joint commander more options for submarine employment than ever before—to establish sea control in denied areas and facilitate follow-on joint-force access.2
Submarines need to move beyond conventional torpedoes and cruise missiles inside an anti-access/area-denial (A2/AD) environment. They need a stand-and-fight capability and a deeper magazine. They must be able to engage multiple targets with a single launch.
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