Dubris - Classis Britannica Fort

Classis Britannica Fort

The Roman fleet in British waters, the Classis Britannica's main purpose was protecting the Gaul-to-Britain routes and supporting the land army in Britannia, not defending the British Isles from invasion. For this reason its main fort was in Portus Itius (Boulogne-sur-Mer, called also Gesoriacum or Bononia), not Dover. However, it did have other, smaller bases in Britannia itself, at Rutupiae and Dubris.