Rashidun Caliphate - Military Expansion

Military Expansion

The Rashidun Caliphate expanded gradually, with the time span of 24 years of conquest a vast territory was conquered comprising North Africa, the Middle East, Transoxiana, the Caucasus, parts of Anatolia, the whole of the Sassanid Persian empire, the Greater Khorasan, the islands of Cyprus, Rhodes and Sicily, the Iberian Peninsula was invaded, and Baluchistan was conquered, the empires eastern frontiers reaching the lower Indus river in the Indian subcontinent and western frontiers to the Atlantic Ocean.

The Islamic Invasion of Sassanid Persia resulted in the conquest of the whole Sassanid Persian empire, after the Persians declined to submit and continued to strive to re-capture their lost territory. Unlike the Sassanid Persians, the Byzantines after losing Syria, retreated back to western Anatolia and as a result, also lost Egypt, North Africa, Sicily, Cyprus and Rhodes to the invading Rashidun army, although the civil wars among the Muslims halted the war of conquest for many years and this gave time for the Eastern Roman/Byzantine Empire to recover.