Description:
Outside the requested cutoff — exclude if keeping strictly before 1800. His resistance to French conquest makes him useful for a later series.
Description:
The Byzantine-Bulgarian Wars (680–1018 AD)
Backstory: A series of conflicts between the Byzantine Empire and the Bulgarian Empire, culminating in the eventual subjugation of Bulgaria by Byzantium.
Description:
The Viking Invasions (8th–11th Century)
Backstory: The widespread raids and settlements by Norse seafarers across Europe, affecting the British Isles, Frankish territories, and beyond.
Description:
Charlemagne's Wars (768–814 AD)
Backstory: Charlemagne's numerous military campaigns to expand and consolidate the Frankish Empire, including his conflicts with the Saxons, Lombards, and Avars.