War of Fijar (Sacrilegious War)

A series of battles broke out between the Quraysh alliance (Kinana) and the Qays Aylan tribes during the sacred months, hence called 'sacrilegious.' The young Muhammad, about 20 years old, participated by collecting arrows for his uncles but did not engage in the fighting himself. The war lasted intermittently for about four years before a peace was negotiated. This experience exposed him to tribal conflict and its devastation.