air supremacy; mastery of the air
Military term for control of the airspace, often used in contexts of air power and aerial warfare.
制空権を握ることが戦闘の鍵だ。
Gaining air supremacy is the key to the battle.
air supremacy; control of the air
Compound of 制 (control) and 空 (sky, air), likely a modern coinage related to military aviation terminology.