दुर्गापाश्रया पुरुषापाश्रया वा भूमिरिति पुरुषापाश्रया श्रेयसी ॥ कZ_०७.११.२३ ॥
durgāpāśrayā puruṣāpāśrayā vā bhūmir iti puruṣāpāśrayā śreyasī
A territory may be secured chiefly by forts or chiefly by men; the territory secured chiefly by men is preferable.
Men can move, adapt, and project force; forts are fixed assets that can be bypassed, besieged, or rendered irrelevant without competent troops.
No; it ranks priorities—forts help, but trained and loyal personnel are decisive.