When the Greeks had lain siege to Troy for ten years, without results, they pretended to retreat. They left behind a huge wooden horse, in which a number of Greek heroes, among whom Odysseus, had hidden themselves. The spy Sinon convinced the Trojans, despite the warnings of Laocoon, to move the horse inside the city as a war trophy. In the following night, the Greeks left the wooden horse and attacked the unsuspecting and celebrating Trojans, and finally conquered Troy.