Thrace & North Aegean in 218 B.C.

Thrace & North Aegean — Ptolemaic Egypt › The Overseas Empire.

The far northern reach of Ptolemaic sea-power: the cities of Aenus and Maroneia on the Thracian coast and the approaches to the Hellespont and Lysimacheia. These distant garrisons let the fleet watch the grain-route to the Black Sea and contest the straits with Macedon and the Seleucids — the outermost edge of an empire that, as Polybius marvels, reached even to Thrace.