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BATTLE // -417 BCE

Battle of Mantinea

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Overview

The first Battle of Mantinea was fought in 418 BC during the Peloponnesian War. In this battle, Sparta and its Peloponnesian allies defeated an allied army of Argos, Athens, Mantinea and several others.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The first Battle of Mantinea was fought in 418 BC during the Peloponnesian War, pitting Sparta and its Peloponnesian allies against a coalition of Argos, Athens, Mantinea, and several other states. Sparta secured a victory, inflicting recorded casualties of 1,300 on the Argive side. The engagement brought opposing forces of roughly comparable size into direct confrontation, with Spartan forces numbering around 9,200 against an allied force of approximately 9,300. The battle's commanders included the Spartan king Agis II on one side, and Laches and Nicostratus leading Argive forces on the other.

Forces & casualties

Troop strength

  • Sparta9,200
    medium
  • Argos9,300
    medium

Both sides were near-evenly matched in numbers

Casualties

  • Argos1,300
    medium14% loss rate

Commanders (3)

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Related

6 sibling battles · 0 factions

Last verified July 2026
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