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Macedonia. For centuries an irrelevant backwater, Macedonia was catapulted to prominence under Philip II, who made Macedon into a great power. He created a new kind of military formation, the Macedonian phalanx, and managed to bring all of Greece to heel. Truly, the reign of Philip II also started proper relations between Macedonia and Egypt. For Philip II found a natural ally against Persia in the form of Egypt, and in 339 BCE, he proposed an alliance, which Necatanebo II accepted. But Philip was assasinated in 336 BCE by a disgruntled bodyguard named Pausanias, and his young son Alexander seemed a weakling, a bumbling teenager. But this was far, far, from the truth. For Alexander did not merely preserve his father's gains, but would go on to be remembered as one of the greatest people who ever lived, by undertaking the impossible, conquest of the Persian Empire.

Finally in May 334 BCE Alexander had secured his father's kingdom and marched out into Asia, where some say he accepted Asia as a "gift from the gods", and defeated the Persians at the battle of Granicus. But he was not done yet, for Alexander defeated the Persians in two more big battles. After Issus, Alexander came into contact with Necatanebo II, who married off his daughter Tashereniset[1]. A key general in Alexander's campaign against the Persians was Memnon[2], who would become very important in later years...

Tashereniset:

[1]- Another fictional character. The children of Necatanebo II are so obscure that we don't know their names or if they existed. This is what I decided to go with. A real Tashereniset was the mother of Amasis II.

[2]- With Mentor still in Egypt, Memnon, Barsine, and Artabazus stay in exile and Memnon ends up fighting for instead of against Alexander, making the invasion even easier.