He was winning.
Probably not. While Voldemort’s terrorist group was doing increasingly well, Dumbledore’s presence alone would be sufficient to prevent a complete victory, and the entire civil war was a distraction from Voldemort’s likely main concern, the muggles.
Probably not. While Voldemort’s terrorist group was doing increasingly well, Dumbledore’s presence alone would be sufficient to prevent a complete victory, and the entire civil war was a distraction from Voldemort’s likely main concern, the muggles.