• Actions by submarines actions, and anti-submarine warfare
  Anti-submarine warfare
  Anti-submarine warfare is a branch of naval warfare that uses surface warships, aircraft, or other submarines to find, track and deter, damage or destroy enemy submarines....
  
  , i.e. warfare between submarines, other submarines and surface ship
  Surface ship
  A surface ship is any type of naval ship that is confined to the surface of the sea. The term is primarily used to mean any modern vessel type that is not a submarine; although a "surface ship" may range in size from a cutter to an aircraft carrier, the weapons and tactics have some commonality,...
  
  s; combat airplane
  Fixed-wing aircraft
  A fixed-wing aircraft is an aircraft capable of flight using wings that generate lift due to the vehicle's forward airspeed. Fixed-wing aircraft are distinct from rotary-wing aircraft in which wings rotate about a fixed mast and ornithopters in which lift is generated by flapping wings.A powered...
  
  s and helicopter
  Helicopter
  A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...
  
  s may also be engaged when launching special dive-bombs and torpedo
  Torpedo
  The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...
  
  -missile
  Missile
  Though a missile may be any thrown or launched object, it colloquially almost always refers to a self-propelled guided weapon system.-Etymology:The word missile comes from the Latin verb mittere, meaning "to send"...
  
  s against submarines;

• Underwater special operations
  Special operations
  Special operations are military operations that are considered "special" .Special operations are typically performed independently or in conjunction with conventional military operations. The primary goal is to achieve a political or military objective where a conventional force requirement does...
  
  , considering:
  • Military diving sabotage
    Sabotage
    Sabotage is a deliberate action aimed at weakening another entity through subversion, obstruction, disruption, or destruction. In a workplace setting, sabotage is the conscious withdrawal of efficiency generally directed at causing some change in workplace conditions. One who engages in sabotage is...
    
     against ships and port
    Port
    A port is a location on a coast or shore containing one or more harbors where ships can dock and transfer people or cargo to or from land....
    
    s.
  • Anti-frogman techniques
    Anti-frogman techniques
    Anti-frogman techniques are security methods developed to protect watercraft, ports and installations, and other sensitive resources both in or nearby vulnerable waterways from potential threats or intrusions by frogmen or other divers....
    
    .
  • Reconnaissance
    Reconnaissance
    Reconnaissance is the military term for exploring beyond the area occupied by friendly forces to gain information about enemy forces or features of the environment....
    
     tasks.

See also

• Commando
  Commando
  In English, the term commando means a specific kind of individual soldier or military unit. In contemporary usage, commando usually means elite light infantry and/or special operations forces units, specializing in amphibious landings, parachuting, rappelling and similar techniques, to conduct and...
  
  
• Frogman
  Frogman
  A frogman is someone who is trained to scuba diving or swim underwater in a military capacity which can include combat. Such personnel are also known by the more formal names of combat diver or combatant diver or combat swimmer....
  
  
• List of special forces units
• Modern naval tactics
  Modern naval tactics
  The term modern naval tactics refers to tactical doctrines developed after World War II, following the final obsolescence of the battleship and the development of long-range missiles. Since there has been no major naval conflict since World War II, with the exception of the Falklands War, many of...
  
  
• Spetznaz