US Army General Mark Clark was charged with gauging the level of French reaction to the American invasion. Traveling by UK submarine to the coast, he narrowly evaded capture by pro-Vichy units a number of times but was able to secure a supposed promise from French Vichy Admiral Jean Darlan that the French would not fight. Darlan did not actually have the authority to make such a statement, and in any case he was soon assassinated after signing a cease-fire on November 13.
When the Americans and British landed in several places, including Casablanca, Oran, Tangiers, and others, the reaction of the French colonial government was varied. At Oran, the USS Massachusetts fought a gun duel with the dry-docked French battleship Jean Bart. Jean Bart, immobile, was crippled by Massachusetts and not repaired until after the war.
The first major Anglo-American operation of the war was commanded by Dwight D. Eisenhower form his base at Gibraltar. While it was successful, months of hard fighting against the Germans remained that would test both the Anglo-American alliance and the green American fighting men.
The stiff Vichy resistance cost the Americans 556 killed and 837 wounded. Three hundred British troops and 700 French soldiers were also killed.