The Trojan war horse is a tale from the Trojan war (which took place long, long ago). The Greeks used this 'horse' to enter the city of Troy and end the conflict. The ten year siege, the Greeks the built a gigantic, wooden horse, and hid a select force of men inside it. The Greeks faked their sail away while the Trojans pulled in the horse into their city as a victory trophy, unknowing of the men hiding inside it. That very night the Greeks snuck out of the Trojan horse and secretly opened the gates to let the rest of the Greek army inside. The Greeks had sailed back with the cover of darkness. They had entered the city of Troy and destroyed. Finally ending the war, for good.