This is Sparta!
The brief sequence in which one soldier steps on another is clearly indicative of the scene in the film 300 in which Leonidas kicks the Persian messenger into a large well. Sparta was the strongest military power in ancient Greece.
The logo of Assassin's Creeed Odyssey, with the Greek helmet, the meandering ornament framing it around the edges, and of course the name "Odyssey," leaves no doubt as to what awaits us in the latest installment.
Odyssey is a reference to the wanderings of Odysseus, a hero from Greek mythology. He wandered around the world's oceans for ten years after the Battle of Troy before finding his way to his native Ithaca to his wife, the Spartan princess Penelope.