धान्वनवनसंकटपङ्कशैलनिम्नविषमनावो गावः शकटव्यूहो नीहारो रात्रिरिति सत्त्राणि ॥ कZ_१०.३.२४ ॥
dhānvanavana-saṃkaṭa-paṅka-śaila-nimna-viṣama-nāvo gāvaḥ śakaṭa-vyūho nīhāro rātrir iti sattrāṇi
‘Penutup/penyamar’ (sattrāṇi) ialah: daerah gurun; hutan; tempat sempit/sukar dilalui; lumpur; perbukitan/pegunungan; tanah rendah; medan tidak rata; perahu; ternak sapi; formasi kereta (śakaṭa-vyūha); kabut; dan malam.
Operational cover—anything that hides movement, protects approach, or masks intent (terrain, weather, darkness, or even mobile screens like cattle and wagons).
It is a planning checklist: identify available concealment assets (natural and man-made) to reduce detection and enable surprise.