Anti-submarine warfare

Anti-submarine warfare (ASW or in older forms A/S) is a branch of naval warfare that uses surface warships, aircraft or other submarines to find, track and then damage or destroy enemy submarines. Like many forms of warfare, successful anti-submarine warfare depends on a mix of superior technology, experience and luck. Sophisticated sonar equipment for first detecting, and then tracking, the target submarine is a key element of ASW. To destroy submarines both the torpedo and mine are used, launched from air, surface and underwater platforms.
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