Some embodiments include a countermeasure assistance system that, in response to detecting a threat to an aircraft, calculates and presents via a user interface an instruction to assist a pilot in evading the threat. For example, the system may determine a direction to which the aircraft should be turned to present a beam of the aircraft toward the threat, which may assist in evading a radar-enabled threat. The system may calculate a shortest turn to present the beam to the threat. The system may additionally display information regarding a position, nature, and degree of the threat, including through formatting of at least a portion of a user interface for displaying information regarding the threat. The system may additionally calculate and display an intervisibility zone for the threat and for the aircraft's current position to further assist the pilot in navigating to an area at which the threat may be evaded.