The old Trojan Horse trick is one of the most legendary deceits of all time, so there's no doubt that this story is going be chock full of lies. Not only is Odysseus' sneaky plan totally deceptive, the plan also requires Sinon to tell a whole string of lies to get the Trojans to drag the giant horse into their city. So the real question becomes this: just how dishonorable is it of the Greeks to use this tactic? You could see them as low down scoundrels, or you could see them as just being smarter than their enemies.
The story of the Trojan Horse is one of the most famous incidents of the Trojan War, which is totally one of the most iconic wars in all of Western literature. So yeah, we'd say warfare is probably a pretty big theme in this story. One thing that's interesting about the Trojan Horse itself is that it isn't your average weapon of mass destruction. You know, it's not like Odysseus decides to build a big flamethrower to incinerate the walls of Troy. Instead, he comes up with a far craftier way to cause massive devastation. In some ways, you could see the Trojan Horse a prelude to our world of modern warfare, where the side with the best technology can often dominate its foes.