 Complete the following phrase:  By October 1942, Davidson was a colonel and assistant chief engineer for the Western Task Force of Operation Torch of the Allied North Africa under the command of General George S. Patton. As 1st Armored Division moved to invade Sicily in June 1943, it was activated into Seventh United States Army, and Davidson became its chief engineering officer. As a combat engineer, he facilitated Seventh Armys landing in Sicily and enabled Pattons armor to move rapidly across enemy territory. An appreciative Patton used one of his own general stars to honor Davidson in a September 1943 battlefield promotion to brigadier general, one of the youngest of the war at age 39. Davidson remained with Seventh Army under its interim command by General Mark W. Clark then General Alexander Patch and was key in planning for Operation Anvil  Operation Dragoon, the Allied landing in southern France following the 