In February 1943, following the Casablanca conference of January that same year, General Dwight D. Eisenhower became the supreme commander of all allied forces in North Africa campaign.
Alexander became Eisenhower's deputy and at the same time commander of the 18th Army Group, which controlled the First and Eighth armies and the separate U.S. II Corps.
Air chief marshal Sir Arthur Tedder assumed command of the allied forces, and admiral Cunningham retained command of the naval forces. It was under this revised command structure that the Allies decisively defeated Axis forces in the North Africa campaign.
The amount of opportunity based on where people live
The Underground Railroad is not a railroad that is underground, instead, it is referring to a secret passage for slave escaping in safe houses. The conductor of the Underground Railroad could be the person who helps the slave escape, the lines could refer to the road or the passage which the slaves escaped from one safe house to another, the station could refer to the stops they make in the safe houses, and the freight may refer to the slaves that are escaping.