Why does Achilles enter the Greeks' battle with the Trojans? A. He wants to betray Odysseus. B. He wants to avenge Patroclus. C. He wants to help Hector. D. He wants to defeat Agamemnon.
The main reason why Achilles enters the Greeks' battle with the Trojans is because "D. He wants to defeat Agamemnon." although there are other motivations too.