पृष्ठतश्च पुरस्ताच्च मित्रप्रकृतिसम्पदा ॥ कZ_०७.१३.४२च्द् ॥
pṛṣṭhataś ca purastāc ca mitraprakṛtisampadā
पृष्ठतश्च पुरस्ताच्च मित्रप्रकृतिसम्पदा॥
Because allies are only reliable if their internal state-capacities are intact; weak allies collapse, defect, or become liabilities.