What were the terms of the Treaty of Eternal Peace between Justinian I and Khosrow I?

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Mosaic detail of Emperor Justinian I with a jeweled crown and halo, wearing ornate robes, from the Church of San Vitale in Ravenna, Italy. — Justinian I Justinian I, detail of a mosaic in the Church of San Vitale, Ravenna, Italy.

In 532, the Byzantine emperor Justinian I and the Persian king Khosrow I negotiated the Treaty of Eternal Peace, often referred to as the "Endless Peace."

The primary term of this agreement was that Justinian I agreed to pay a significant amount of tribute to the Persian Empire. In exchange, the treaty established a cessation of hostilities along the Persian frontier. This diplomatic move was strategically motivated, as it allowed Justinian to secure his eastern border and redirect his military resources toward his campaigns for the reconquest of territories in the West.1