शिबिरमार्गसेतुकूपतीर्थशोधनकर्म यन्त्रायुधावरणोपकरणग्रासवहनमायोधनाच्च प्रहरणावरणप्रतिविद्धापनयनमिति विष्टिकर्माणि ॥ कZ_१०.४.१७ ॥
śibiramārga-setu-kūpa-tīrtha-śodhana-karma yantrāyudhāvaraṇopakaraṇa-grāsa-vahanam āyodhanāc ca praharaṇāvaraṇa-pratividdhāpanayanam iti viṣṭikarmāṇi
Tugas kerah/auxiliari ialah: membersihkan dan menyediakan kem, jalan, jambatan, telaga dan tempat menyeberang; mengangkut jentera, senjata, perisai/peralatan perlindungan, kelengkapan dan makanan ternakan; serta dari medan perang, menanggalkan senjata dan perisai yang tersangkut/terbenam (dan halangan seumpamanya).
Combat is treated as the visible tip of a larger administrative system: engineering, transport, provisioning, and recovery/clearance are formalized as state-directed functions.
They are critical mobility and sustainment nodes; controlling and maintaining them reduces march attrition and prevents bottlenecks.