Ingersoll was promoted to the rank of admiral on the following 1 July and broke his flag on the converted yacht USS "Vixen" (PG-53) on 17 July. Having organized the movements of the thousands of ships across the Atlantic to have men and supplies on hand at the precise hour for the North African landings in November 1942, he also had the responsibility of planning the composition of the naval escort forces which insured the troop convoys' safe arrival.