* THE BIGGEST SUBMARINES ► USS PENNSYLVANIA ► UNITED STATES NAVY. –
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* USS Pennsylvania is a United States Navy Ohio-class ballistic missile submarine which has been in commission since 1989. The Ohio class is a class of nuclear powered submarines used by the United States Navy. The Navy has 18 Ohio-class ballistic missile submarines and guided missile submarines.
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THE BIGGEST SUBMARINES ► USS PENNSYLVANIA ► UNITED STATES NAVY.
