Persia was not satisfied from the first war, and who would be if you were in Persia's position, for Persia lost the battle of Marathon. So now, Darius' son, King Xerxes, was seeking out revenge on Greece. He gathered an army of about 200,000 fighters sent along with about 1,000 warships. The battle of Thermopylae started, again, with Greece having the smaller army, this time, led by Leonidas, the Spartan King. Greeks, however, were the better fighters. In the battle, the Greeks killed off thousands of Persians fighters. It was going all for the Greeks yet again untill the Persian army found a way to sneak up on the Greeks from behind. After holding up their ground as best as they could, the Greeks finally gave in and lost the battle of Thermopylae. At the battle of Salamis, it was a big battle between ships. This was a battle that took place off the coast by Salamis. Even though the Persian ships were a lot bigger than the ships of the Athenians, the fighters of Athens found their footing by ramming into the Persian ships and sinking them. All in all, the Greeks won the battle of Salamis. The final battle of the war, the battle of Plataea, occured near Plataea. This was a battle fought on foot, and it indeed was won by the Greeks. Famous people in this war were both of the leaders of both armys, who were Leonidas, the Spartan King, and King Xerxes. What the Greeks gained from winning this war is the ability to keep most of their city-states.