Scroll down to may '41 and you will find Tiger. all of the convoys mentioned (Hats, excess, halberd, substance, collar etc) either flew aircraft to Malta and/or ships to Malta. There were basically no shipments from Gibraltar to Egypt in 1941 or 1942, with the exception of "Tiger". so all other material for Egypt & the MidEast had to go around the Cape . Because in history it was a safe passage for the supply ships with French Algeria & Morocco captured, and with Spain neutral. If Spain is on the Axis side then the better plan would be to supply the operation via atlantic Morocco ports and then by rail to Tunisia, at the beginning. A strain on the NW Africa rail, but no alternative. I didn't overlook Casablanca. I meant the supply ports would be Casablanca, rabat & Tangier instead of Casablanca, Algiers & Oran.