Beginning on October 24,1942, the 3rd Infantry Division, 15th Infantry Regiment sailed from Norfolk, Virginia, bound for French Morocco.
On the attached map you can see that this was a joint exercise with the British. This map is from a British book so it is more detailed about the British portion of the operation. (The dates are also written in the European style with the day/month so 3/11 = Nov. 3.) The British passed through the Straights of Gibraltar and landed farther east.
The Americans were scheduled to land in the area around Casablanca. The course followed by the American fleet was designed to make the Germans think that they might have a different objective. The zig-zag course was also used to avoid the German U-boats.
Lt. John B. Armstrong was in the group that was scheduled to land near Fedala at daybreak on Nov. 8, 1942. Fedala was 16 miles north of Casablanca. Casablanca was under control of the Vichy French who, of course were under German control.
Fedala was the was the first amphibious landing where Lt. Armstrong was a participant. He also participated at Sicily, Salerno, Anzio, and St. Tropez. At that point he returned home for some R&R and began training for the invasion of Japan, which thankfully never happened.
1. "HyperWar: HyperWar: War at Sea 1939-1945, Vol. II: The ... - Ibiblio." 2005. 6 Nov. 2013 <http://www.ibiblio.org/hyperwar/UN/UK/UK-RN-II/>