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BATTLE // -334 BCE

Alexander's Balkan campaign

Overview

The Balkan campaign of Alexander the Great took place in 335 BC, against a number of rebellious vassals of the Macedonian kingdom. Alexander successfully pacified each in turn, leaving him free to begin the long-planned invasion of Persia.

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

Significance

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.

Forces & casualties

Troop strength

  • Macedonia12,000
    medium
  • Thracians14,000
    medium

Thracians fielded a 1.2 : 1 numerical advantage

Commanders (5)

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Related

6 sibling battles · 0 factions

Last verified July 2026
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