'1.21 Gigawatts?!': Directed Energy Weapons Charge Up for a Naval Showdown

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The last line of defence for warships worldwide is the Close in Weapon System (CIWS) (pronounced ‘seewiz’). CIWS designs are usually optimised against anti-ship missiles (ASMs), which are often very fast (>1000ms-1) and very manoeuvrable (>10g lateral and/or longitudinal acceleration). CIWS is the final defensive line providing a last ditch capability to destroy close in threats - threats that may have defeated other defensive layers, or just not been detected early enough for...

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