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strip alert

n. a state of readiness for domestic defense aircraft; "the Air Force will keep fighters on strip alert at bases around the country"

Usage examples of "strip alert".

Barely four minutes later, a B-2 bomber on strip alert at an Israeli air base in the Negevjust in casearrived on target.

The air defense strip alert birds got off the ground fast, but ten minutes was far too long.

They don't have to pull 'round-the-clock strip alert or fly four scrambles a day or emergency dispersals.