Anger be now your song, immortal one, Akhilleus' anger, doomed and ruinous, that caused the Akhaians loss on bitter loss and crowded brave souls into the undergloom, leaving so many dead men--carrion for dogs and birds; and the will of Zeus was done. Begin it when the two men first contending broke with one another-- the Lord Marshal Agamémnon, Atreus' son, and Prince Akhilleus. Among the gods, who brought this quarrel on? The son of Zeus by Lêto. Agamémnon angered him, so he made a burning wind of plague rise in the army: rank and file sickened and died for the ill their chief had done in despising a man of prayer.
The Iliad, Book I, Lines 1-15
RAGE: Sing, Goddess, Achilles' rage, Black and murderous, that cost the Greeks Incalculable pain, pitched countless souls Of heroes into Hades' dark, And left their bodies to rot as feasts For dogs and birds, as Zeus' will was done. Begin with the clash between Agamemnon-- The Greek warlord--and godlike Achilles. Which of the immortals set these two At each other's throats? Apollo Zeus' son and Leto's, offended By the warlord. Agamemnon had dishonored Chryses, Apollo's priest, so the god Struck the Greek camp with plague, And the soldiers were dying of it.