निरुदकस्तम्बमिरिणं वा धान्वनं खञ्जनोदकं स्तम्बगहनं वा वनदुर्गम् ॥ कZ_०२.३.०१ ॥
nirudakastambam iriṇaṃ vā dhānvanaṃ khañjanodakaṃ stambagahanaṃ vā vanadurgam
A forest-fort is a site that is either: a reed-thicket without water; barren/rough ground; arid land with scant water; or dense thickets of reeds.
These terrains obstruct enemy movement and logistics, reduce cavalry effectiveness, and create natural concealment and choke points for defenders.