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The Battle of Isly was fought on August 14, 1844 between France and Morocco, near the Isly River. French forces under Marshal Thomas Robert Bugeaud routed a much larger, but poorly organized, Moroccan force under Mohammed, son of Sultan Abderrahmane of Morocco. Bugeaud, attempting to complete the French conquest of Algeria, instigated the battle without a declaration of war in order to force negotiations concerning Moroccan support for the Algerian resistance leader Abd el Kader to conclude on terms favorable to the French.

Battle of Isly
Part of the First Franco-Moroccan War
Battle of Isly by Horace Vernet
Battle of Isly, oil painting by Horace Vernet
Date14 August 1844
Result French victory
Flag of France (1794–1958) France Morocco
Commanders and leaders
Flag of France (1794–1958) Thomas Robert Bugeaud Mohammed (IV)
11.000 soldiers 20.000-25.000 cavalry
Casualties and losses
27 killed
99 wounded[1]
800 killed
11 cannons

Bugeaud, who recovered the Moroccan commander's tent and umbrella (equivalent to capturing a military standard in European warfare), was made Duke of Isly for his victory.

The day following the battle, the Bombardment of Mogador started.[2]


  1. ^ Pierre Montagnon, The conquest of Algeria: The seeds of discordie, 2012.
  2. ^ E.J. Brill's first encyclopaedia of Islam, 1913-1936, Volume 9 Martijn Theodoor Houtsma p.550

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Coordinates: 34°41′24″N 1°55′48″W / 34.6900°N 1.9300°W / 34.6900; -1.9300