ADA

Air Defense Area

In the context of aviation and aerospace, an "Air Defense Area" refers to a designated region of airspace where aircraft are subject to specific rules and restrictions due to national security or defense concerns.

Air Defense Artillery

In the context of aviation and aerospace, "Air Defense Artillery" (ADA) refers to a branch of the military responsible for defending against airborne threats, such as aircraft, missiles, and unmanned aerial vehicles (UAVs). The primary mission of Air Defense Artillery is to protect friendly forces, assets, and territories from aerial attacks.