The Siege of Eretria took place in 490 BC, during the first Persian invasion of Greece. The city of Eretria, on Euboea, was besieged by a strong Persian force under the command of Datis and Artaphernes. After Eretria, the Persian force sailed for Athens, landing at the bay of Marathon. An Athenian army marched to meet them, and won a famous victory at the Battle of Marathon, thereby ending the first Persian invasion.