https://en.wikipedia.org/wiki/Common_Infrared_Countermeasures_program https://en.wikipedia.org/wiki/Common_Infrared_Countermeasure... >Infrared guidance system

https://en.wikipedia.org/wiki/Common_Infrared_Countermeasures_program https://en.wikipedia.org/wiki/Common_Infrared_Countermeasure... >Infrared guidance systems in heat-seeking missiles are designed to track strong sources of infrared radiation >Directional IRCM, or DIRCM, allows for a countermeasures laser to be targeted directly at an incoming IR threat.