Franco-Moroccan agreement of 10 September 1844.
The Treaty of Tangier followed the defeat of the Moroccan army at the Battle of Isly by a French force pursuing the Algerian resistance leader Abd al-Qadir, who had frequently sought refuge in Moroccan territory. The treaty obligated the Moroccan government to consider Abd al-Qadir an outlaw and to offer him no assistance.
— KENNETH J. PERKINS
Encyclopedia of the Modern Middle East and North Africa. Copyright © 2004 by The Gale Group, Inc. All rights reserved.