Busr ibn Abi Artat al-Amiri (Arabic: بسر بن أبي أرطأة العامري, romanized: Busr ibn Abī Arṭāt al-ʿĀmirī; 620s–c. 690–700s) was a prominent Arab commander in the service of Mu'awiya I, the governor of Islamic Syria (640s–661) and the first Umayyad caliph (661–680). A veteran of the early Muslim conquests in Syria and North Africa, Busr became an ardent partisan of Mu'awiya against Caliph Ali (r. 656–661) during the First Muslim Civil War. He led a large-scale campaign against Ali's supporters in Arabia, gaining the submission of Medina, Mecca and Ta'if to Mu'awiya's caliphate and carrying out punitive measures against the inhabitants of Yemen. His actions in Arabia, which included executing two young sons of Ali's cousin, the governor of Yemen Ubayd Allah ibn Abbas, and taking captive women