The Greek strongly believe in Fate or Destiny, that is nothing happens unless it is destined to be so. But this doesn't mean that the will to win of the heroes is immaterial or no importance. I disagree about the victory of the trojan because many gods help them like Zeus summon Iris and Apollo to help the trojan because seeks out Hector and fills him and his comrades with fresh strength while Iris said to Poseidon to leave the battlefield. Hector leads a charge against the Achaeans, and while their leaders initially hold their ground, they retreat in terror when Apollo himself enters the battle. Apollo covers over the trench in front of the Greek fortifications, allowing the Trojans to beat down the ramparts. While the Greeks are helped by Gods too like Poseidon, eager to help the Achaeans and realizing that Zeus has gone, visits Little Ajax and Great Ajax in the form of Calchas and gives them confidence to resist the Trojan assault. He also rouses the rest of the Achaeans, who have withdrawn in tears to the sides of the ships. Their spirits restored, the Achaeans again stand up to the Trojans, and the two Aeantes prove successful in driving Hector back.
I think all are willed by Gods because when the Gods proclaimed that when Patroclus die, Hector will die too that is true because when Patroclus died Achilles want's revenge by killing Hector
