During the early 20th century, North Africa was a flashpoint of imperial rivalry between France and Germany. In September 1908, six soldiers belonging to the French Foreign Legion deserted their post in Casablanca, Morocco. Among them were three German nationals.
Seeking passage out of the country, the deserters contacted the local German consul, who agreed to assist them and offered diplomatic protection. On September 25, 1908, a German consular official attempted to smuggle the deserters aboard a German steamship anchored in the Casablanca harbor. However, French military authorities spotted the group on the beach and intervened.
A violent scuffle broke out between the French soldiers and the German diplomatic team. The French troops physically seized the deserters, ignoring the German official's protests of diplomatic immunity and even detaining a Moroccan servant employed by the German consulate. The event rapidly escalated into a major international diplomatic crisis known as the Casablanca Incident.
The German Empire demanded an official apology and the release of the German deserters, citing diplomatic sovereignty. France stood firm, insisting that military jurisdiction took precedence within Moroccan territory occupied by French troops. Nationalism erupted in both Paris and Berlin, with newspapers calling for military action.
Recognizing the risk of an all-out European war, both nations agreed to submit the dispute to the Permanent Court of Arbitration in The Hague in November 1908. The court ultimately ruled in May 1909 that both sides had committed errors, defusing the immediate crisis but leaving underlying tensions unresolved.