Final answer:
The proper employment of specific U.S. Air Force assets to accomplish detailed objectives is described by tactical level doctrine, which is closely associated with technology and emerging tactics.
Step-by-step explanation:
The level that describes the proper employment of specific U.S. Air Force assets, individually or in concert with other assets, to accomplish detailed objectives is tactical level doctrine. The tactical level is closely associated with the employment of technology and emerging tactics, which can lead to changes occurring more rapidly than in other levels of doctrine.