diplomatic

King’s Peace (Peace of Antalcidas)

Date

-387

Part of

diplomatic

In 387/6 BCE, Artaxerxes II dictated the King’s Peace: Asia’s Greek cities to Persia; all other poleis ‘autonomous’ with Sparta as enforcer. Xenophon preserves the text’s chill clarity. The Persian archer on silver now underwrote a Greek ‘common peace’ Sparta would police—often by force.

What Happened

After a decade of post-404 backlash—the Corinthian War’s battles at Nemea, Coronea, and the naval debacle at Cnidus—Sparta sought not another field victory but a pen dipped in Persian ink. Antalcidas, a Spartan diplomat with an eye for leverage, traveled to the court of Artaxerxes II. The Great King wanted Asia’s Greek cities; Sparta wanted mainland primacy without Athenian or Theban leagues. The bargain wrote itself [4], [10], [11].

Xenophon records the terms with a scribe’s restraint: “The King, Artaxerxes, deems it just that the cities in Asia … should belong to himself; the rest of the Hellenic cities … independent,” and further, that if any city refused, “I will wage war against them” [3]. Independence here meant no coercive leagues—except Sparta’s authority to enforce the settlement. The words rang like hammered bronze in every council across Greece.

Places and symbols sharpen the meaning. At Susa, where the edict likely took form, the Persian court’s azure tiles and solemn processions framed a peace for Greeks. In Sparta, the news arrived with relief and resolve: Agesilaus, who had once marched in Asia Minor, now marched to “free” poleis from their neighbors. In Thebes, men like Epaminondas and Pelopidas read autonomy as a trap to unravel their Boeotian League; in Athens, the memory of Cnidus and the Long Walls’ fall made caution seem prudent, for a time [3], [4], [10].

The peace was a weapon. In 385, Sparta would cite autonomy to break Mantinea’s walls and village its people. In 383–379, it would levy allied troops for northern wars under the same rubric. The “common peace” did not still Greek rivalries; it re-channeled them under the eyes of a foreign king whose coin—Plutarch’s “archers”—still glinted in everyone’s purse [6], [10], [11].

Yet even as the document promised stability, it implicated Sparta in contradictions: guardian of autonomy imposing outcomes by spear; defender of Hellenic freedom conceding Asia to Persia. The quiet hum in city assemblies turned to sullen groans each time a Spartan harmost arrived carrying the peace like a writ of seizure [3], [4], [10].

Why This Matters

Immediately, the King’s Peace halted the Corinthian War by aligning Persian and Spartan aims: Asia ceded to Persia, mainland “autonomy” policed by Sparta. The arrangement disbanded rival leagues, checked Athenian naval resurgence for a time, and gave Sparta legal cover for interventions from Mantinea to Olynthus [3], [4], [10].

Thematically, it epitomizes “Persian Leverage and Common Peace.” External money and royal authority structured Greek interstate life. Sparta’s leadership depended less on allied affection and more on the capacity to brand force as treaty enforcement—a shift that deepened the “Coercion vs. Legitimacy” dilemma when interventions looked self-serving [10], [11], [16].

In the wider narrative, the peace bought years but not security. Phoebidas’ 382 seizure of the Theban Cadmea—condemned in theory, condoned in fact—showed how “autonomy” could be twisted, catalyzing Theban resurgence. A decade later, Epaminondas would shatter the underlying assumption—Spartan land supremacy—at Leuctra, and the Persian-blessed framework would wobble with it [4], [5].