Military campaigns under Caliph Uthman

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Uthman
644–656
Uthman's reign reached its peak in 654.
Location	Rashidun Caliphate
Monarch(s)	Uthman
Key events	Battle of Nikiou Conquest of Egypt Conquest of Armenia Conquest of Persia Battle of the Masts
Chronology Umar's military conquests First Fitna

The 3rd Rashidun Caliph, Uthman (r. 644–656) continued the policy of military expansion carried out by his predecessors, Umar and Abu Bakr. During his reign, the caliphate stretched from Tripolitania, Egypt, and Anatolia to Greater Khorasan and Sindh and reached its greatest extent in 654 CE. However, these conquests were halted when a rebellion began in Egypt which led to his murder, and began the first Fitna.