Why did leaders of the Muslim Empire want to conquer the Byzantine and Sassanid empires?

Al-Baladhuri According to the Muslim historians of the 9th century, local populations regarded Byzantine rule as oppressive, and preferred Muslim conquest instead.

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citizens get the vast majority of their political and governmental information from the media, which includes television, print journalism, radio, and now the internet. the media play an important role in connecting people to government.