What was the biggest contribution to the Trojan war?

The biggest contribution to the Trojan War was arguably the cunning strategy of the Greeks, particularly the use of the Trojan Horse. This deceptive tactic, devised by Odysseus, allowed Greek soldiers to infiltrate the heavily fortified city of Troy by hiding inside a large wooden horse presented as a peace offering. This clever maneuver ultimately led to the fall of Troy, marking a decisive turning point in the conflict. Additionally, the war itself was fueled by underlying themes of honor, pride, and the whims of the gods, which all played significant roles in its duration and outcome.