Direct defensive action taken to destroy, nullify, or reduce the effectiveness of hostile air and missile threats against friendly forces and assets. It includes the use of aircraft, air defense weapons, electronic warfare, and other available weapons. See also air defense.
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  active air defense - air defense by the use aircraft or missiles or artillery or electronic countermeasuresair defense - defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness |
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