
Aegina is one of the Saronic Islands of Greece in the Saronic Gulf, 27 kilometres from Athens. Tradition derives the name from Aegina, the mother of the hero Aeacus, who was born on the island and became its king.

The Boeotian or Theban War broke out in 378 BC as the result of a revolt in Thebes against Sparta. The war saw Thebes become dominant in the Greek World at the expense of Sparta. However, by the end of the war Thebes’ greatest leaders, Pelopidas and Epaminondas, were both dead and Thebes power already waning, allowing for the Rise of Macedon.

The Corinthian War was an ancient Greek conflict lasting from 395 BC until 387 BC, pitting Sparta against a coalition of Thebes, Athens, Corinth and Argos, backed by the Achaemenid Empire. The immediate cause of the war was a local conflict in northwest Greece in which Thebes and Sparta intervened. The deeper cause was hostility towards Sparta, provoked by that city's "expansionism in Asia Minor, central and northern Greece and even the west". The Corinthian War followed the Peloponnesian War, in which Sparta had achieved hegemony over Athens and its allies.

The first Persian invasion of Greece, during the Persian Wars, began in 492 BC, and ended with the decisive Athenian victory at the Battle of Marathon in 490 BC. The invasion, consisting of two distinct campaigns, was ordered by the Persian king Darius the Great primarily in order to punish the city-states of Athens and Eretria. These cities had supported the cities of Ionia during their revolt against Persian rule, thus incurring the wrath of Darius. Moreover, Athens was part of the persian empire since Kleisthenes gave them soil and water, for their protection against the invading spartan army, summoned by Isocrates. Darius also saw the opportunity to extend his empire into Europe, and to secure its western frontier.

The Greco-Persian Wars were a series of conflicts between the Achaemenid Empire and Greek city-states that started in 499 BC and lasted until 449 BC. The collision between the fractious political world of the Greeks and the enormous empire of the Persians began when Cyrus the Great conquered the Greek-inhabited region of Ionia in 547 BC. Struggling to control the independent-minded cities of Ionia, the Persians appointed tyrants to rule each of them. This would prove to be the source of much trouble for the Greeks and Persians alike.

The Ionian Revolt, and associated revolts in Aeolis, Doris, Cyprus and Caria, were military rebellions by several Greek regions of Asia Minor against Persian rule, lasting from 499 BC to 493 BC. At the heart of the rebellion was the dissatisfaction of the Greek cities of Asia Minor with the tyrants appointed by Persia to rule them, along with the individual actions of two Milesian tyrants, Histiaeus and Aristagoras. The cities of Ionia had been conquered by Persia around 540 BC, and thereafter were ruled by native tyrants, nominated by the Persian satrap in Sardis. In 499 BC, the tyrant of Miletus, Aristagoras, launched a joint expedition with the Persian satrap Artaphernes to conquer Naxos, in an attempt to bolster his position. The mission was a debacle, and sensing his imminent removal as tyrant, Aristagoras chose to incite the whole of Ionia into rebellion against the Persian king Darius the Great.

The Lamian War, or the Hellenic War was fought by a coalition of cities including Athens and the Aetolian League against Macedon and its ally Boeotia. The war broke out after the death of the King of Macedon, Alexander the Great, and was part of a series of attempts to challenge Macedonian hegemony over mainland Greece.

The Samian War was an Ancient Greek military conflict between Athens and Samos. The war was initiated by Athens's intervention in a dispute between Samos and Miletus. When the Samians refused to break off their attacks on Miletus as ordered, the Athenians easily drove out the oligarchic government of Samos and installed a garrison in the city, but the oligarchs soon returned, with Persian support.

The second Persian invasion of Greece occurred during the Greco-Persian Wars, as King Xerxes I of Persia sought to conquer all of Greece. The invasion was a direct, if delayed, response to the defeat of the first Persian invasion of Greece at the Battle of Marathon, which ended Darius I's attempts to subjugate Greece. After Darius's death, his son Xerxes spent several years planning for the second invasion, mustering an enormous army and navy. The Athenians and Spartans led the Greek resistance. About a tenth of the Greek city-states joined the 'Allied' effort; most remained neutral or submitted to Xerxes.

The Third Sacred War was fought between the forces of the Delphic Amphictyonic League, principally represented by Thebes, and latterly by Philip II of Macedon, and the Phocians. The war was caused by a large fine imposed in 357 BC on the Phocians by the Amphictyonic League, for the offense of cultivating sacred land; refusing to pay, the Phocians instead seized the Temple of Apollo in Delphi, and used the accumulated treasures to fund large mercenary armies. Thus, although the Phocians suffered several major defeats, they were able to continue the war for many years, until eventually all parties were nearing exhaustion. Philip II used the distraction of the other states to increase his power in northern Greece, in the process becoming ruler of Thessaly. In the end, Philip's growing power, and the exhaustion of the other states, allowed him to impose a peaceful settlement of the war, marking a major step in the rise of Macedon to pre-eminence in Ancient Greece.