The Silent Revolution: Submarines in the 21st Century | Project Force
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Submarines, crucial to the nuclear powers of the Cold War, are having a silent revolution, as new designs centered around underwater combat are developed by militaries around the world. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website: http://www.aljazeera.com/ #Aljazeeraenglish #Project_force #Al_Jazeera_Digital_Content