Uthman Ibn Affan - Military Expansion

Military Expansion

Further information: Military campaigns under Caliph Uthman

Islamic empire expanded at unprecedented rate under Caliph Umar, following the death of Caliph Umar, almost whole of the former Sassanid empire's territory rebelled from time to time until 650, when the last Sassanid emperor was assassinated. Caliph Uthman thus directed several military expeditions to crush rebellion and re-capture the Persia and their vassal states. The main rebellion was in the Persian provinces of Armenia, Azerbaijan, Fars, Sistan, Tabaristan, Khorasan, and Makran. These provinces were across present days Pakistan, Iran, Afghanistan, Azerbaijan, Dagestan, Turkmenistan and Armenia. In addition to these provinces several other territories were also subdued in the region. After the death of Caliph Umar, Byzantine emperor Constantine III launched an attack but was repulsed, due to which Uthman ordered annual raids in Anatolia to cut off the power of Byzantine. From 647 to 651 major offensives were launched in Cappadocia, Caesarea Mazaca, Cilicia and Isauria in 650–651 forced the Byzantine emperor Constans II to enter into negotiations The truce that followed made it possible for Constans II to hold on to the western portions of Armenia. A naval force was built and island of Cyprus was captured in 649 followed by the capture of Crete and Rhodes. After a naval victory against Byzantine fleet a part of Sicily was also captured. In 654–655 Uthman ordered for the preparation of an expedition to capture Constantinopole, it was about to be launched when Uthman was murdered. North Africa was invaded in 647 and Byzantine Exarchate of Africa which had declared its independence under its King Gregory the Patrician was annexed. Nubia was invaded in 652 and its capital Dongola was sacked. Though battle remained inconclusive and a peace offer from Nubian King was accepted according to which no party will any aggressive moves against each other. In 652–653 the Iberian Peninsula was invaded and its coastal areas were captured, before further expansion could be made Caliph was murdered and forces were pulled back from Iberia and north Africa during Muslim civil war.