Constantine P. Cavafy poems that deal with other situations such as closure (for example, "The walls"), debt (for example, "Thermopylae"), and human dignity (for example, "The God Abandons Antony"). The poem "Thermopylae" reminds us of the famous battle of Thermopylae where the 300 Spartans and their allies fought against the greater numbers of Persians, although they knew that they would be defeated. There are some principles in our lives that we should live by, and Thermopylae is the ground of duty. We stay there fighting although we know that there is the potential for failure. (At the end the traitor Ephialtes will appear,
Delian League to the Persian Empire, and Eretria was duly destroyed. However, the invasion ended in 490 BC with the decisive Athenian victory at the Battle of Marathon. Between the two invasions, Darius died, and responsibility for the war passed to his son Xerxes I. Xerxes then personally led a second Persian invasion of Greece in 480 BC, taking an enormous (although oft-exaggerated) army and navy to Greece. Those Greeks who chose to resist (the 'Allies') were defeated in the twin simultaneous battles of Thermopylae on land and Artemisium at sea. All of Greece except the Peloponnesus thus having fallen into Persian