HTW related and general Ancient history,battles or campaigns here is the place to be.
Already some usefull links:

General Ancient History & Archaeology

Ancient Greece

Ancient Rome

Ancient Egypt

The Classics & Mythology

Ancient Mythology, Legend, Folklore, & Ghosts

Ancient Persia

Ancient Eastern Empires

To have a look and a further read at the most Historical Battles and Campaigns that will be in the new HTW release:

Greek Warfare and Battles

CZoF