Civic Guard

The Civic Guard is the force that protects the city-state of Qarth. When Daenerys Targaryen and her khalassar the gates of Qarth, a cadre of Civic Guards appear as protection for the Thirteen, the city's rulers.

In the books
In the A Song of Ice and Fire, the Civic Guard is commanded by the Pureborn of Qarth. It includes some camelry and works in partnership with the Pureborn fleet