The Valkyrian Security System (VSS) is the alert system for Valkyria.

Threat levels

Threat level Response
Critical An attack is imminent. The Valkyrian Defense Forces are mobilized.
Severe An attack is highly likely. The National Gendarmerie is mobilized.
Substantial An attack is a strong possibility.
Moderate An attack is possible, but not likely. The National Police is placed on alert.
Low An attack is unlikely. Routine security measures are retained.