In the books
In the A Song of Ice and Fire novels, New Ghis is located near the larger island of Ghaen. It is the capital of the resurgent Ghiscari Empire. It has a powerful army and fleet, and uses elephants in battle. Its troops draw inspiration from the Unsullied warrior-eunuchs, but whilst the Unsullied are slaves the troops of New Ghis are free men who serve for three-year terms.
- New Ghis at A Wiki of Ice and Fire (spoilers from the books)