When Zeus allowed the other gods to get involved in the war, Apollo was provoked by Poseidon to a duel.
wˌɛn zˈuːs ɐlˈaʊd ðɪ ˈʌðɚ ɡˈɑːdz tə ɡɛt ɪnvˈɑːlvd ɪnðə wˈɔːɹ, ɐpˈɑːloʊ wʌz pɹəvˈoʊkt baɪ pəsˈaɪdən tʊ ɐ dˈuːəl.