Short answers, pulled from the story.
Operation Torch commenced on the 8th of November 1942 with landings at three points in Morocco and two west of Algiers. The Eastern Task Force secured Algiers by noon on the 10th of November after negotiations with General Clark.
Lieutenant General Dwight D. Eisenhower was appointed Commander in Chief of the Allied expeditionary force on the 14th of August 1942. He established his headquarters in London before moving to Gibraltar to coordinate the invasion strategy.
Eisenhower made an agreement with Darlan on the 10th of November recognizing him as French High Commissioner in North Africa. In return Darlan ordered all French forces in North Africa to cease resistance to the Allies and cooperate instead.
Planners identified Oran, Algiers and Casablanca as key targets for the operation. A compromise plan included landings at Bône in eastern Algeria but limited resources dictated that the Allies could only make three landings.
Admiral Dönitz ordered twenty-five Atlantic U-boats to move towards the Morocco area and Gibraltar upon receiving news of the landings. The first wave of nine U-boats arrived off Morocco but achieved little success against well-prepared defenses.