Xerxes was the Persian king, who wanted to take over Greece. Leonidas was the king of Sparta, who was one of many to defend Greece. It's pretty obvious why they were enemies.
Etruscans Carthaginians
3 enemies of Ancient Greece are: 1. Persia (Main enemy) 2. Rome 3. Macedonia
they were enemies
Persia was a main one, but that's a difficult question, seeing as Greece was divided into many different City-States, and there were wars between them. Such as the Pellopenisian war between Athens and Sparta.
Macedonia, Albania, Bulgaria and Turkey (They are not enemies, but are in dispute except for Turkey who they hate each other and Greece wins over Turkey
Armenia, Greece, Russia, and Chinaall from historical perspective. Maybe not so bad today.
The nation of Bulgaria has no political rivals today. Since the fall of communism, it has been a peaceful place to reside.
Turkey considers Israel an enemy and is allied with Iran and Libya.
A large number of Greek cities were located in Asia Minor which the Persians took over. The cities were restive and their parent cities in Greece intervened in their aid. To gain stability in its empire, Persia decided to incorporate mainland Greece to establish an ethnic frontier. These states resisted and war ensued and continued until Persia agreed not to attempt to rule the cities in Asia Minor.
Sweden has no enemies.
they have no enemies