You guys don’t forget this
5. Byzantine-Seljuq ([1048-1308; 260](tel:1048-1308; 260) years)
The Byzantine-Seljuk Wars included a series of battles over a period of 260 years that led to a shift of powers from the Byzantine Empire to the Seljuk Turks in the regions of Asia Minor and Syria, and the rise of an era of the Crusades. After the conquest of Baghdad in 1055, the Turks expanded their kingdom westwards and, in 1064, the Seljuk Sultan, Alp Arslan, captured Armenia from the Byzantines. In 1067, when the Turks attempted to invade Asia Minor, they were pushed back by a Byzantine counterattack. However, the Battle of Manzikert in 1071 proved to be a major victory for the Seljuk Turks, as there they managed to defeat the Byzantine forces and capture the Byzantine Emperor himself. Despite this major win, the Byzantine rule over Asia Minor continued, and it took another 20 years for the Turks to achieve complete control over the Anatolian Peninsula. The call for the First Crusade was made when the Seljuk Turks went on to capture Jerusalem. Within a hundred years after the Battle of Manzikert, the First Crusades had driven out the Seljuks from the coasts of Asia Minor, and the Byzantines successfully regained some form of control over parts of their lost territories. However, the subsequent Crusades did more harm than good to the Byzantines, as the Crusaders, often ignoring or disrespecting their allies, also often looted Byzantine towns and villages along the way.