What are the reasons for Philip’s conquest of the Greek city-states?

The reason for these conquests was his political ambitions. In addition, at that time, the Greek city-states were disunited, and he still skillfully played along with their strife. Thus, he was able to gain the support of some city-states, and defeated the troops of others in battle. So in 338 BC Philip 2 was able to gain power over most of Greece. We can say that thanks to this he became the ruler of the Balkans.