शत्रूणामापाते कूपकूटावपातकण्टकिनीश्च स्थापयेत् ॥ कZ_१०.१.१२ ॥
śatrūṇāmāpāte kūpakūṭāvapātakaṇṭakinīśca sthāpayet
Auf den Wegen, auf denen Feinde (das Lager) überfallen könnten, soll er Fallgruben, verdeckte Aushebungen und dornige Hindernislinien anlegen.
They reduce reliance on constant manpower, lower the probability of surprise, and create enforceable ‘security geometry’—a predictable defensive environment that administrators can audit and maintain.