Al-Mu'tasim, Caliph (Tahirid Dynasty) : All Data

Al-Mu'tasim was the eighth Abbasid Caliph who ruled from 833 to 842. He was known for his military prowess and expansionist policies. During his reign, the most significant war was the Abbasid-Tahirid War, which lasted from 838 to 841. This conflict arose between the Abbasid Caliphate and the Tahirid dynasty, who sought to establish their independence in the eastern provinces. Al-Mu'tasim led several successful campaigns against the Tahirids, ultimately suppressing their rebellion and reasserting Abbasid control. His military achievements solidified his reputation as a strong and capable ruler, and his reign marked a period of territorial expansion and consolidation for the Abbasid Caliphate.