Skandagupta's gold held the Huns at the border — and emptied the treasury

The Gupta Empire (c. 319–550 CE) was the classical 'Golden Age' of India. Under Skandagupta, who ruled from 455 to 467, the empire faced the Hephthalite Huns, a Central Asian steppe power pushing into the northwest. Skandagupta met them in battle and defeated them decisively. The Bhitari pillar inscription records the victory: the Huns were thrown back, and the empire was saved.

The victory came at a ruinous cost. Decades of warfare drained the royal treasury. Skandagupta's gold coins, once pure, were debased with other metals. The number of coins issued dropped sharply. The Huns had seized the Silk Route, cutting Gupta trade links to Central Asia and Rome. The cost of defending the frontier, rebuilding the army, and maintaining the empire's standing absorbed resources that the agricultural economy could not replenish.

Skandagupta is considered the last great Gupta emperor. After his death, the empire entered a slow decline. Provincial governors asserted independence. The treasury could not fund another major campaign. The Huns returned in the late 5th century, and this time there was no money to stop them. By 550, the Gupta Empire had fragmented into smaller states.

The defense was perfect — it stopped the enemy. It was also fatal, because it was paid for with the reserves that would have been needed to survive the next attack.