The French and Spanish armies, allied against the Riffs in Morocco, begin a blockade of all shipments entering Morocco in an attempt to prevent arms smuggling. On 26 July French forces reject an envoy from Riffian leader Abd-el- Krim attempting to negotiate Riffian autonomy. On 26 May 1926 the Franco- Spanish troops under the command of Marshal Henri Philippe Petain conquer the Riffs and force Abd-el-Krim into exile. On 10 July 1926 France and Spain sign a treaty promising peace in Morocco between the two occupying forces.