I think the Battle of the Atlantic would have changed a lot as more Axis coastline would have increased U-Boat effectiveness, and Ferrol is a port outside of range for Allied air to attack U-Boats as was so devastating in the northern reaches of the Bay of Biscay…….A severing of the African convoy route would be a very real possibility.
How?
- The U-boats still have to destroy the North Atlantic convoy trade. The fact they are coming from a different base does not change that fact.
- The air attacks in the Bay of Biscay were not really a big problem for the U-boats at this stage of the war (but became an issue later).
- The fact that Spanish bases may be outside of air range does not change anything either as the U-boat pens on the French Atlantic coast were invulnerable to air attack anyway.
- You mentioned that there are only so many Allied subs – but that is exactly the same for Donitz. The taking of Gibraltar does not mean he has more U-boats. Just more U-boat bases.
As I said, taking Gibraltar is only the start. I repeat, on its own it achieves nothing. Now, if the taking of Gibraltar gives Hitler the inclination to really ramp up U-boat construction then yes, things will get tougher. But this is all getting ahead of ourselves. The building, the crew training – these take time.
The point of the Mediterranean strategy is to kick the British out of Egypt, fuel supplies in the near east etc etc. So…. How does this happen? You mention Malta, but with Gibraltar captured, Malta is probably gone anyway. But all this is of secondary importance. How do the Axis take out Egypt?
I think too much is being made of Mers-el-Kebir. It happened. Despite it happening there were still thousands of Frenchmen that understood DeGaulle held the future for a properly ‘Free’ France and not some German puppet state with no power and even less relevance – and were prepared to fight fellow Frenchmen (Dakar, Syria, Madagascar, North Africa) to realise the dream that France would be free of the Nazi yoke once more.
I do not believe that people think a German betrayal to the extent we are talking in this scenario, would be dismissed with a Gallic shrug. That does not say very much for the average Frenchman. It forgets that well over 1.5m Frenchmen are still prisoner in Germany. What are the French supposed to think will happen next? The moment Hitler, with a stroke of a pen, gives away French territory, the game is up – there is no more France. Just a lakey state held in limbo until it is time to be carved up between Germany, Spain and in particular Italy, at the conclusion of the war.
Would the French in North Africa simply lay down their arms and welcome their new Spanish overlords? Would the French admirals and sailors in Toulon simply hand over their ships or try and scuttle them? No I believe they would have made every effort to reach Algiers - and if not only then would they scuttle rather than surrender.