| 21. | Upon her return, she concentrated increasingly upon honing her antisubmarine warfare ( ASW ) capability.
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| 22. | Antisubmarine warfare capabilities received the greatest emphasis as she received a helicopter flight and hangar deck.
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| 23. | On 23 March, the ship departed for Chinhae and conducted antisubmarine warfare training en route.
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| 24. | She got underway on 17 November 1980 to take part in Atlantic Antisubmarine Warfare Exercise 2 81.
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| 25. | The first operational battlefield UAV developed by the US military was for antisubmarine warfare ( ASW ).
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| 26. | This tour of duty also saw her engaged in various antisubmarine warfare exercises with the Philippine Navy.
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| 27. | She remained in Philippine waters into June, varying convoy and patrol duties with antisubmarine warfare exercises.
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| 28. | After the Pearl Harbor Attack, the 23d engaged in antisubmarine warfare against German U-boats.
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| 29. | Hunter-killer antisubmarine warfare ( ASW ) training prepared the ships to return to the Mediterranean.
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| 30. | The targets suddenly turned toward " Tautog " and were recognized as an antisubmarine warfare team.
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