Abstract:
The Ottoman presence in Algeria had several reasons, the most important of which is
the European conflict on the Algerian coasts, especially Spain, which carried the banner of
the Crusades by recommending the Papal Church, as well as the keenness of Queen Isabel-
la of Castile to occupy the coasts of the western Mediterranean, and the Algerian coasts
witnessed the occupation of Jijel, Bejaia and Algeria since the beginning of the 16th centu-
ry. And Oran El-Morsa Al-Kabir, until the people sought the help of the two brothers, Bar-
barossa, after the accusations were spread across the Mediterranean, and this intervention
had several repercussions, the most important of which was the affiliation of Algeria to the
Ottoman Empire, to become a political subordinate to the Sublime Gate, which became
appointing the rulers of Algeria, and it was caused by the Ottoman presence in Algeria du-
ring The 16th century AD, which lasted until the end of the 19th century AD, has several
effects on Algeria, including the positive and the negative
