Mapmakers term · Canon reference
Rules of engagement (ROE)
Operational instructions defining identification, warning, and lawful conditions for the use of force.
Meaning in the series
During The Suwałki Gap, military personnel are reminded of a graduated ROE ladder and the distinction between hostile intent and hostile action. ROE operate within superior legal authority rather than replacing it.
Source and related reading
Primary source: The Suwałki Gap. This entry explains terminology found in the published fiction; for controlling legal wording, consult the linked instruments.