What is Sinon's role in plan to attack Troy?

Sinon plays a critical role in the Greek strategy to attack Troy in the context of the Trojan War, particularly in the story depicted in Virgil's "Aeneid" and Homer's "The Iliad," as well as other classical narratives. Sinon is a Greek warrior who is left behind as the Greeks feign their departure from the Trojan shores after a long siege. His primary role involves deceiving the Trojans regarding the giant wooden horse—the Trojan Horse—that the Greeks have constructed. Sinon pretends to be a deserted Greek who has escaped from the Greek camp, and he explains to the Trojans that the horse is a sacred offering to the goddess Athena, meant to ensure safe passage home for the Greeks and to serve as a token of their surrender. He cunningly convinces the Trojans that taking the horse into the city would be a sign of favor from the gods and that it would protect Troy. Sinon’s persuasive speech ultimately leads the Trojans to bring the wooden horse into their city, despite warnings from figures like Laocoön and Cassandra. This act sets the stage for the Greek warriors hidden inside the horse to emerge at night, opening the gates for the rest of the Greek forces who have returned under the cover of darkness, leading to the fall of Troy. Sinon's deception is thus a pivotal moment in the narrative, demonstrating themes of cunning, betrayal, and the use of wit in warfare.