What is the purpose of the Electronic Counter Measure System (ECM)?

The Electronic Counter Measure System (ECM) primarily serves as a method of protecting military aircraft and vessels from detection by enemy radar systems. The central focus of ECM is to disrupt or deceive enemy radar and make it more challenging for adversaries to track or target friendly forces. This involves employing various techniques such as jamming signals, creating false targets, or otherwise interfering with the enemy's ability to effectively utilize their radar systems.

While enhancing operational stealth is closely related and is achieved through the effective use of ECM, the direct function emphasized is protection from radar detection itself. Other options, like improving electronic communication or gathering intelligence, do not fall within the primary role of ECM. Instead, these activities involve different systems and technologies that serve distinct purposes in military operations.