| Role | Major naval force during the Middle Ages |
| Tactics | Long-range attacks • Fierce boarding actions • Skilled sailors • Advanced tactics and strategies |
| Defenses | Treaties with Islamic powers • Alliances with European powers |
| Technology | Advanced ship materials • Faster ships • Maneuverable ships • Long-range projectile weapons |
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| Historic battles | Siege of Constantinople • Battle of Artemisium • Battle of Sybota |