The importance of the history of the Crusades for us in general and for the student of history in particular is due to the fact that it represents one of the experiences of the history of Arabism and Islam as a whole, whether in the East or in the Maghreb. It is a multifaceted, dangerous experience, full of lessons and lessons, which requires us to examine it and turn its pages from time to time in order to benefit from the results of past mistakes and to face and overcome the dangers of the present and to understand and avoid the dangers of the future. In this way, we will preserve the rights of Arabs, restore the integrity of Arabism, and guarantee future generations a free and dignified life in the land of our dear, dear homeland.