page_title: List of currently active United States military watercraft
section_title: Attack submarines
hierarchical_section_title: List of currently active United States military watercraft / Commissioned ships (USN) / Attack submarines
caption_attribution_description: English: The nation's newest and most advanced attack submarine Seawolf (SSN 21) puts to sea in the Narragansett Bay operating area for her first at-sea trial operations on July 3, 1996. Sea trials include various tests of the Seawolf propulsion systems and the first underway submergence of the submarine. The Seawolf represents the Navy's most advanced quieting technology, weaponry, tactical capability and communications. Seawolf is scheduled to be delivered to the Navy and commissioned this fall. U.S. Navy photo courtesy of General Dynamics.
context_page_description: The United States military has numerous types of watercraft, operated by the Navy, including Naval Special Warfare Command and Military Sealift Command, as well as the Coast Guard, Army and Air Force
context_section_description: Los Angeles class – 32 active
  Seawolf class – 3 active
  Virginia class – 19 active
caption: Seawolf-class submarine
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