What types of detection systems can Electronic Counter Measures be used against?

Electronic Counter Measures (ECM) are designed to disrupt or interfere with various types of detection systems that are used in military applications. The correct answer encompasses the broad range of systems that ECM can target, including radar and sonar, which are vital for detecting objects in the air and underwater, respectively.

Infrared systems, commonly used for heat detection, and laser systems, which can be used for targeting or range finding, are also susceptible to ECM tactics. This capability makes ECM a critical part of modern warfare, as it enhances the survivability and operational effectiveness of military assets by degrading enemy detection abilities across multiple domains.

By addressing all these systems—radar, sonar, infrared, and lasers—this answer acknowledges the versatility and comprehensive application of ECM, highlighting its importance in countering multiple forms of modern sensing technology.