Leonidas and his men held Thermopylae for three days. On the third day, a Greek traitor named Ephialtes led the Persian army behind the Spartans. It was then that Leonidas sent away all the Greek troops except 700 Thespians, who refused to leave. The small Greek force was attacked from both sides. They fought hard but finally they were all killed. Xerxes told his men to remove Leonidas' head and put it on a stake. He also told them to crucify his body. Now, there is a monument near Leonidas’ death site. It has the following inscription: