They began going further with their Jihad. The Islamic warriors tried to kill the entire Jewish male population in the area, forcefully married the females, and then converted them and their children into Islam. This tradition became part of the Islamic "Jihad" beliefs.
Islamic "Jihad" or holy war (622-651 CE)
The Arab Islamic army originally used "Jihad" to conquer both the Sassanid Empire and the Byzantine Empire. In less than 30 years they took over the Sassanid Empire and drove the Iranian civilization into the ground. They took part of the Byzantine Empire. They occupied today’s Iraq, Syria and Egypt. They collected a lot of wealth, killed millions of males and took millions of females, marrying them by force.
The Kurdish leader Salahuddin Ayyubi (1174–1193) and Crusaders
After the Arab power diminished, the Kurds briefly took over the "Jihad". They worked with the Arabs during the Crusades under the leadership of the Salah al-Din (Saladin) Ayyubi. This Kurdish leader was very nice to the Crusaders. He did not like killing and distractions. He came from the Aryan (Iranian) culture of civilizations. He was different from the Arabs and Turks and did not share their mentality of killing and destructions.
The Seljuks Turk Empire (1137-1153) Turko-Persian traditionalist and the Crusaders .
Having received the permission of Sultan Mahmud Ghaznawi (the Ruler of Eastern Iran, Iran was divided into many states then), the Seljuk Turks crossed the Oxus River and settled in northern Khorasan, a province which they subsequently occupied completely during the reign of Mahmud's son, Sultan Masud. In 1038 Toghril Beg was crowned as the Seljuk sultan in Neishabur.
They reached Baghdad and took Iraq and part of Syria. They fought the Crusaders too. After the death of Mali k - Shah, differences arose among his descendants and the Seljuk Empire entered a path that led towards its own disintegration.
They disintegrated into many smaller principalities and later the Mongols came into the region and it was further divided into many small states. They fought each other and fought the Byzantine Empire too.
The Ottoman Empire (1299-1922) and Turkish "Jihads" against the Crusaders
The Ottomans arose from the obscure reaches of Anatolia in the west of Turkey; these Western Turks were called the Oghuz. They had come primarily as settlers during the reign of the Seljuks in Turkey (1098-1308). The Anatolian frontier was largely hostile to Islam. Some of them were warriors of the Islamic faith carrying out jihad, or "holy struggle," to spread the faith among hostile unbelievers. It was a tough life in Anatolia; the Seljuks had been the first to maintain power over the area.
By 1300, about the time the Seljuk state was crumbling apart, the Ottomans ruled a small military state in western Anatolia. This small state was in conflict with several other small Muslim states, each preying on the other for territory. By 1400, however, the Ottomans had managed to extend their influence over much of Anatolia and even into the Byzantine territory in Eastern Europe: Macedonia and Bulgaria. In 1402, the Ottomans moved their capital to Edirne in Europe where they threatened the last great bastion of the Byzantine Empire, its capital, Constantinople. The city seemed to defy the great expansion of Islam. No matter how much territory fell to the Muslims, Constantinople resisted every siege and every invasion. The Ottomans, however, wanted to break this cycle. Not only would the seizure of Constantinople represent a powerful symbol of Ottoman power, but it would make the Ottomans master of east-west trade. In 1453, Sultan Mehmed (1451-1481), who was called "The Conqueror," finally took this one last remnant of Byzantium and renamed it, Istanbul. From that point onwards, the capital of the Ottoman Europe would remain fixed in Istanbul and, under the patronage of the Ottoman sultans, become one of the wealthiest and most cultured cities of the early modern world.
The Turkish wars of genocides are aimed at eliminating the Anatolian population. It has never stopped for one moment. The Turks are guilty along with the Arabs for the elimination of other nations in the region.
The "Jihads" won't stop unless the people of the world get together to stop this unjust practice. There must be a push to reform Islam. The people in the Islamic world should be allowed to study Islam and be free to say what is wrong and what is right with it. The Arab nationalists changed the teachings from passive to violent. The Turks were violent communities in the first place. They are the product of Mongols. They became Muslim and added more violence to their behaviors. This is why they have killed millions of people in the region.