How did the Marathon battle begin? How did it end?

The Marathon battle took place between the Greeks (Athenians and Plateians) and the Achaemenid army that invaded Greece 490 BC. under the leadership of King Darius 1. The battle began with an unexpected and rapid attack by the Greeks. A small Greek army defeated and defended Athens. The Persian campaign failed. The Greeks were better trained, more experienced in military affairs, and well equipped. The Greeks also had the motivation to defend their homeland, they were more organized than the Persians, they had strict discipline.