Final answer:
Achilles' fatal flaw is his excessive pride which leads to disastrous consequences, intensifies the Trojan War, and results in his own downfall.
Step-by-step explanation:
In the epic poem The Iliad by Homer, Achilles' fatal flaw is his excessive pride or hubris. This problem proves significant because it leads to disastrous consequences. Due to his pride, Achilles allows personal slights to overshadow the greater good of his comrades in the Trojan War. He withdraws from the battle, causing losses on the Greek side, to spite Agamemnon who insulted him. When he finally re-joins the battle, his rage sends him into a killing spree, resulting in the death of Hector, which then invites his own fateful consequence. Thus, his fatal flaw intensifies the war and ultimately results in his own downfall.
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