The people of Anatolia was forced to live under the circumstances of the danger caused by the presence of Byzantine empire while suffering from Mongolian invasion. Kayı tribe is a frontiersman that remains its’ presence at Söğüt. Because of where the tribe is located to face the Byzantine danger, they are in a continuous state of red alert. Giving the conditions and the sickness of Ertuğrul Ghazi, there occured a power vacuum.