Well, a small extension of Spanish Guinea is probably no problem.
Giving Spain and Italy bits of Algeria is really too much since
1 ) It was seen as metropolitan France
2 ) I doubt Italy had the time (and enough success) to seriously penetrate in Algeria. I doubt even more that they took Constantine.
3 ) I'm even more sure Spain didn't manage to reach Oran or take West Saharan Algeria. Spaniards would have been lucky to take French Morocco (when their participation in the war was so quick).
The 2) and 3) apply to Mauritania and Northern Mali as well.
Having Spain annexing Andorre, occupying French Basque and a bit of Roussillon, and gaining Morocco and a bit of Guinea is already much.
If you ALSO give them Mauritania and Mali, it will be humiliating for France (since the Spaniards didn't take those lands, it would be unearned).
Even worse if Spain and Italy gain Algerian land.
On top of the humiliation, there would be the feeling that the French empire is carved. Especially as they will likely lose Tunisia Djibouti and Indochina too.
Plus French people likely still rabidly hate Germany. That might change if Wagner plays well but for now they hate Germany.
They probably hate even more Italy (the former ally, ie turncoat) and Spain (who attacked when France was down). Plus being defeated by SMALLER powers like Italy and (worse) Spain STINGS.
All of that put together might undermine Collaboration and Petain regime. Push French population to resist or oppose collaboration out of pride. Worse, push parts of French EMPIRE to defect to De Gaulle.
If the Spaniards want THAT BADLY Mauritania and Mali, it can wait for the final peace. And even then it might be better if Spain BUYS those colonies. And only if France gets enough British colonies in return.
While Algeria (even at final peace) should be a big no-no.
At the final peace, if Benny wanted Constantine that badly, just give him Syria and Lebanon (MUCH less important to France).
And it's likely Benny renounces his claims on Algeria. After all, if everything goes well, he gets Greece, (most of) Yugoslavia, Tunisia, Egypt, Palestine, Transjordania, Iraq (maybe in condominium with French and Germans). Possibly Sudan, British Somalia, Syria and Lebanon. So renouncing any part of Algeria will be feasible.
It's a nice great planning. I agree with you in most of your post, but I would add two changes:
- Algeria is considered a French metropolitan area susceptible of a subsequent Spanish/Italian annexation after the war, due to an earlier occupation of part of French Algeria during the European war -established by the French armistice because Franco and Mussolini alleged to protect many Spanish/Italian citizens in these areas (Oran region for Spain, Constantine region for Italy).
- If Italy immediately receives two French strategic colonies after the French armistice, at a minimum, Spain should receive a small extension of the Spanish Guinea and the promise of acquiring the French colonial territory forming the Greater Morocco -ie, Mauritania, the Malian regions of Gao, Kidal and Timbuktu and the Algerian regions of Bechar and Tindouf-, plus the possibility of annexing the Algerian province of Adrar, El Bayadh, Naama to establish a more defensible border in case of a Spanish annexation of the region of Oran.
- This could be seen as a Spanish justified claim, for the eyes of the Nationalists and the Axis, as a form of French compensation for facilitating arms smuggling that benefited Republicans during the SCW, needlessly prolonging it.
With respect to the super expansion of Spanish Morocco, I was referring to a German promise to Francoist Spain to be fulfilled after the final peace, and the French already had sufficient compensation to the acquisition of the Belgian Congo and some British colonies.
But as the Spanish occupation and subsequent annexation of French metropolitan areas (Rousillon, French Basque Country and Oran region, without forgetting the possibility of reforming the border in the Pyrenees mountains including the Spanish annexation of Andorra) after WW2, I think the Oran region is a Spanish territorial claim legitimate due to the following fact: three quarters of the European population living there is of Spanish origin, and this data is primarily a Spanish economic immigration originated in the late nineteenth century, not due by Republican exiles. And I imagine that Mussolini wanted to imitate Franco, carrying a tasty piece of Algeria (all or part of the region of Constantine); after all, Mussolini was Wagner's greatest European ally.
And all this without forgetting the damage to the French colonial empire if Free France is conquered/beaten by the Axis but with great difficulty, causing the Axis members (minus Petain) want to show a great punishment to France.