Thanks for this video, I have passing interest in history so didn't know details of Turk invasions of middle east. Sunni Turks in 10th century wage war against Shia Egypt. Shia Turks in 17th century forcefully convert their Iranian subjects in to shiasm.
Turks were only ones to conquer whole subcontinent. Before Islam they also successfully changed demographics of central asia.
Without these turks islamic world map would look very very different today. And to think these turks were pushed down from steppe by other stronger steppe Turk clans. Repeat of history since thousands of years.