The subtitle is more accurate than the title. Greece was a backwater at this time, ruled by Macedon, suffering serious depopulation owing at all the Greeks who left it to form the city-based forces of the Hellenistic kings.
Hellenization was, in fact, a term that was used in the era, though it never went very deep.
Discussions of Rome, Carthage, and the Hellenistic Kingdoms out to Bactria. The various practices. The limited number of names for queens. The way treaties were between not Macedon and Egypt but Phillip and Ptolemy, and when either one died, the treaty was void; the successor had to make such a deal as he could. Most successions had revolts for that reason. King of Kings was a plain description of fact: you left a king on his throne only as your subordinate. You had to. Months of travel did not lend themselves to centralized rule. The aggressiveness of Rome because every consul had one year to win the victories and loot that would enable his continued political career -- and there were two every year.
Covers a number of battles in detail. Also intrigue, treaties, and other such issues.