air superiority

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun warfare A dominance in the air power of one side's air forces over the other side's during a military campaign. It is defined in the NATO Glossary as "That degree of dominance in the air battle of one force over another that permits the conduct of operations by the former and its related land, sea, and air forces at a given time and place without prohibitive interference by the opposing force."