His reign got off to a good start with the victory at Marj al-Saffar.
His reign got off to a good start with the victory at Marj al-Saffar. Other victories under his rule included Yarmuk, which did away with the Byzantine threat; Qadisiya, where the Persians under Rusam were defeated; and Nehavend, where the last vestige of Sassanid power was destroyed. FTP, name this man, who was assassinated by a slave in 644, ten years after he assumed the title of Amir al-Mu'munin, or Prince of the Faithful, as the successor to Abu Bakr as caliph.
His reign got off to a good start with the victory at Marj al-Saffar.
Umar ibn al-Khattab or Omar