Underwater warfare

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Underwater warfare, also known as undersea warfare^[1] or subsurface warfare,^[2] is naval warfare involving underwater vehicle or combat operations conducted underwater. It is one of the four operational areas of naval warfare, the others being surface warfare, aerial warfare, and information warfare. Underwater warfare includes:

• Actions by submarines actions, and anti-submarine warfare, i.e. warfare between submarines, other submarines and surface ships; combat airplanes and helicopters may also be engaged when launching special dive-bombs and torpedo-missiles against submarines;
• Underwater special operations, considering:
  • Military diving sabotage against ships and ports.
  • Anti-frogman techniques.
  • Reconnaissance tasks.