Assyrian conquest of Persia

Assyrian campaigns in Parsua and Elam
Part of Assyrian expansion into the Zagros

Relief depicting the Battle of Ulai (653 BCE) between the Neo‑Assyrian Empire and Elam, from the British Museum collections.
Date844–639 BC
Location
Parsua, Parsa, Elam, Zagros Mountains (modern western Iran)
Result Assyrian victory
Territorial
changes
Assyrian influence extended into western Iran
Belligerents
Neo-Assyrian Empire
  • Elam
  • Median tribes
  • Early Persian tribes (Parsua/Parsa)
Commanders and leaders
Strength
20,000–70,000 15,000–45,000
Casualties and losses
  • Dead and wounded: 500–2,000 soldiers (estimated)
  • Wounded: 1,000–2,500 (estimated)
  • Captured: minimal
  • Civilian deaths: minimal
  • Equipment losses: a few chariots and weapons lost during battles
  • Dead or killed: 12,000–33,000 soldiers (estimated)
  • Wounded: 6,000–13,000 soldiers (estimated)
  • Captured: several thousand soldiers and civilians
  • Civilian deaths: significant during sieges
  • Equipment losses: chariots destroyed; bows, spears, shields, and fortifications heavily damaged