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Military Acronyms and Definitions - MilitaryDictionary.org
active air defense
Direct defensive action taken to destroy, nullify, or reduce the effectiveness of hostile air and missile threats against friendly forces and assets.
View Other Definitionscheck fire
In artillery, mortar, and naval gunfire support, a command to cause a temporary halt in firing.
View Other Definitionshalf-life
The time required for the activity of a given radioactive species to decrease to half of its initial value due to radioactive decay.
View Other Definitionsrescue combat air patrol
An aircraft patrol provided over that portion of an objective area in which recovery operations are being conducted for the purpose of intercepting and destroying hostile aircraft.
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An unidentified target. An aircraft or ship that has not been determined to be hostile, friendly, or neutral using identification friend or foe and other techniques, but that must be tracked by air defense or naval engagement systems.
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