Emperor Boris II was captured Conquering and taken Bringing to Constantinople where he abdicated Change_of_leadership and the Byzantine Emperor John I Tzimiskes announced Expressing_publicly the annexation Change_of_leadership of Bulgaria , even though the Eastern Roman Empire only controlled Control Eastern Bulgaria at the time , but the lands to the west remained under Bulgarian control Control .

After a period of indecisive and slow border warfare , a string of almost unbroken Byzantine victories in the late 10th and early 11th centuries allowed Preventing_or_letting three Byzantine Emperors , namely Nikephoros II Phokas , John I Tzimiskes and finally Basil II to recapture Conquering territory lost Earnings_and_losses to the Muslim conquests in the 7th century Arab–Byzantine wars under the failing Rewards_and_punishments Heraclian Dynasty .