I would be interested to hear opinions on what the consequences would have been if the British had been defeated in N Africa - to the extent of surrendering in Egypt, say before the Torch Landings in 1942. Having read on the subject of Enigma it is quite clear that Britain had a key asset at their disposal,albeit not continual due to intermittent blank periods in decryption when 'keys' were changed. With this facility they were able to make significant refinements to operational strategy based on what they knew of German intentions in both offence and defence. Furthermore on the logistical front - Enigma tip offs allowed allied Submarines in the Med to sink resupply convoys bringing much needed fuel / ammunition etc. However I believe that without this it would have been a much more arduous struggle for Britain. I am not too sure of how much effect the two main protagonists had on their respective forces. I recall reading that Montgomery was only appointed when the General orginally designated to replace Wavell, was killed in a plane crash. And Rommel although seemingly idolised by his own troops, and even by the British - I read that Sepp Dietrich in his memoirs dismissed Rommel thus 'Rommel - Pah !! He just stood on a tank shouting I'm King of Africa.' As for the alternative outcome - would a British defeat here in what was viewed by many to be a 'sideshow' have had much more far reaching consequences ?? For example the immediate loss of the Suez Canal. And the absence of any other credible opposition perhaps allowing a German advance to occupy the Middle East, taking the oil, and delivering another large number of jews in Palestine for the Final Solution. All this is of course moot, but I would be interested in any input here. A very interesting forum. Shame it took me so long to find it and even then it was by accident.