Passage: It is unclear whether the Dahae are also the *Dāha or *Dåŋha (only attested in the feminine Dahi) mentioned by the Avestani Yasht (13.144), which may date from the 5th century BCE. Moreover, any etymological relationship would not be proof that both names refer to exactly the same people.Dahae and Saka tribes are known to have fought at the Battle of Gaugamela (331 BCE), in which the armies of the Achaemenid Empire were defeated by Alexander the Great. After the Achaemenid dynasty collapsed the following year, Alexander recruited Dahae – famed  as mounted archers –  for the Greek invasion of India.

Question: which battle was fought in 331 BCE
Battle of Gaugamela