Complex sentence: As the Byzantines were busy against the Fatimids in Syria and the Bulgars in Macedon, the German Emperor Otto II decided to intervene, and the allied German-Lombard army was defeated in 982 at the Battle of Stilo.
Split into simpler sentences: As the Byzantines were busy against the Fatimids in Syria and the Bulgars in Macedon, the German Emperor Otto II decided to intervene. The allied German-Lombard army was defeated in 982 at the Battle of Stilo.