Original sentence: He was a great Military strategist and statesman
Edited sentence: He was a great Military strategist and statesman, Also known to be the greatest among all the muslim caliph his reign is renowned as era of peace and blessing , In matter of ruling the caliphate he was superior caliph , he was the apex of islamic revolution of 7th century , demolishing the Sassanian empire from geography and declining the supreme s.r domination , becoming the most powerful personality at that time, he was simple pious and abstinent spend his life mostly in simplicity and austerity , and further he was the pioneer of different systems