This group suffered major defeats at the hands of Leo of Tripoli.
This group suffered major defeats at the hands of Leo of Tripoli. One of the most important recruiting grounds for this group was the Cibyrrhaeot Theme. For most of the history of this group, the dromon was its main tool. One of its leaders or droungarios was Romanos Lekapenos, who was based in Samos. In 626, the Slavs and the Sassanids were unable to capture a city because their forces could not (*) unite due to this group. In 970, John I used this group to prevent Sviatoslav's Kievan Rus forces from retreating across the Danube. The decline of this group allowed Enrico Dandolo to attack the weak Sea Walls to capture a capital city in the Fourth Crusade. Greek fire was used by, for 10 points, what military force of an empire that was conquered by Mehmet II and the Ottoman Turks in 1453?
This group suffered major defeats at the hands of Leo of Tripoli.
Byzantine navy [accept Eastern Roman navy; accept word forms; prompt on partial answers]