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ORDER OF BATTLE // -334 BCE

Alexander's Balkan campaign

Estimated force strength by side, with confidence labels per surviving record.

Forces engaged

2 sides catalogued · combined 26,000 estimated

  • Macedonia

    12,000

    Medium-confidence figure

  • Thracians

    14,000

    Medium-confidence figure

Battle context

Alexander's Balkan campaign in 335 BC was directed against a series of rebellious vassals of the Macedonian kingdom. By suppressing each in turn, Alexander secured Macedonia's northern and western frontiers and eliminated the threat of revolt in his rear. The successful pacification of these regions was a prerequisite for the invasion of Persia that Alexander had long planned, and its completion cleared the way for him to commit Macedonian forces to that eastern campaign without risk of destabilization at home. The campaign thus served as the essential consolidating act that made the Persian expedition strategically viable.

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Last verified July 2026
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