Dubris there at anchor "until the ninth hour" (about 3pm) waiting for his supply ships from the second port to come up and meanwhile convening a council of war, he ordered his subordinates to act on their own initiative and then sailed the fleet about seven miles along the coast to an open beach. 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 harbor was in Gesoriacum (Boulogne), not Dover. However, it did have other,
Othona as a "huge ruin". Othona Othona or Othonae was the name of an ancient Roman fort of the Saxon Shore at the location of the modern village Bradwell-on-Sea in Essex, England. The Old English name "Ythanceaster" for the locality derives from the Roman name. The fort of Othona is in a typical late 3rd century style, and was possibly constructed in during or shortly prior to the Carausian Revolt, making it contemporary with the forts at Dubris, Portus Lemanis and Gariannonum According to the "Notitia Dignitatum", which is the only contemporary document mentioning Othona, the fort was garrisoned by a