Which abbreviation refers to "Defensive Counter-Air" operations?

The abbreviation "DCA" stands for "Defensive Counter-Air," which refers to operations designed to protect friendly airspace from enemy air threats. This involves employing various tactics and systems to detect, intercept, and engage hostile aircraft or missiles, ensuring the safety of air operations and assets. By conducting DCA operations, forces can maintain air superiority by neutralizing or severely limiting the capabilities of potential adversaries.

In contrast, the other abbreviations represent different concepts within the realm of military aviation. "EA" typically refers to Electronic Attack, which involves disrupting or deceiving enemy radar and communication systems. "EW" stands for Electronic Warfare, encompassing a broader range of tactics, including electronic attack, electronic protection, and electronic support. "IADS" indicates Integrated Air Defense System, which is a comprehensive system that integrates various air defense assets such as radars, missiles, and command/control elements to defend airspace. Understanding these distinctions is crucial for recognizing the specific role and objectives of defensive counter-air operations within military strategy.