air supremacy

military control of the skies over a particular area

Air supremacy is the most favorable state of control of the air. It is defined by NATO and the United States Department of Defense as "that degree of air superiority wherein the opposing air force is incapable of effective interference." There are normally thought to be three levels of control of the air. Air supremacy is the highest, meaning there is complete control of the skies.  Air superiority is the next highest, which is being in a more favorable position than the opponent. Air parity is the lowest level of control, meaning control of the skies only above friendly troop positions.
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That degree of air superiority wherein the opposing air force is incapable of effective interference. 1/2/73

Degré de supériorité aérienne à partir duquel les forces aériennes adverses sont incapables d'intervenir efficacement. 1/2/73

DOMINIO DELL'ARIA