not meaning to be argumentative.
I think Mexico proper has a very big source of coal. and IF (a big if) they keep louisiana, they have a lot more.
a Mexico/New Spain that advances in late 1700's/early 1800's, which is when the Aranda plan was supposed to happen, would be more than enough to be a deterrent to US aggression. OTL, the US was being aggressive because of having weaker neighbors. ATL, they have to stop and think.
But, this is hijacking your thread, and you're looking at south america.
What you need for SA is a strong country with a pacific coast and a reason for maritime expansion. That's tough. a unified de la plata covering most of the cone is a start. Sounds like you're looking to start a little later than I'd look at, which makes it even tougher. by the wars of independence, the dies are already cast.
Don't worry, I like to argue. We only have to stay civil and everything will be fine.
My sources say Mexico (modern day Mexico) has little coal. As for the territories the US took, looking at a map it seems that most of the American coal is in territory that never was Mexican. Then again, my source is Wikipedia and some other dubtious links so we can't be sure. The idea of Mexico holding Louisiana is actually quite good.
Hmmm... you're right, if we follow the Aranda plan the US won't be able to start a war, especially if a Commonwealth is created since any war with New Spain would bring all the other Viceroys against them. I actually meant to write "Latin America" but somehow forgot the term...
I'm already doing a timeline with such a South American country (*more shameless self promotion). A reason, eh? Hmm... Proyecting influence and helping the navy is a reason. Having a South American nation that focus in the navy is easy since the terrain is very bad for naval wars. In OTL Chile had a pretty good navy for most of their history. Also plenty of nations seemed to take land and islands for no more reason than showing that they have a big dick. Since this proposed future timeline is only a thought that I may or not do in the future, it can start anywhere. I think that the Aranada plan is the better point since the Independence Wars were very, very destructive.
If the wars of independence ended sooner, the window of opportunity for Chile or Peru would be a few years longer, but not much.
Of course, there is the problem of shortening the wars of independence...
Having more organized and unified forces would help greatly. In OTL the patriots had continuos struggles for power and civil wars that make the war even longer, brought more casualties and destruction and set the path for the dictadorships of the future. If they take their chance when Spain is invaded, organize and train properly, they could win earlier and even take important towns intact instead of fighting for them.
Sure - I'll take a look.
Best,
Yay, shameless self promotion works again! Now, seriously, I was joking but thank you very much anyway. Be sure to leave a comment, either with a critique so I can improve or any doubt you have.
In fact, the territorial integration of the 'Plata' region depends ultimately that can be achieved political stability and a political-economic regime that would be attractive to the peripheral regions and strong enough to ensure their permanence in this Nation-State in construction and yet has sufficient strength to support the Brazilian secessionist and revolutionary movements...
Preventing the consolidation of the Brazilian state with similar policies to those practiced by the Brazilian Empire in OTL.
About the immigrants cuestion, a solid State may be that organize, a more effective, than OTL, 'advertising' campaigns in Europe and its probably would have good results summoning immigrants from the various countries.
Finally regarding a hypothetical colonization in the Pacific see much more likely to try to keep the African territories in the Gulf of Guinea, between Niger and Ogooué rivers, which were under the jurisdiction of the naval station of the old Viceroyalty of the Plata...
The only serious possibility that could organize a couple expedition trying 'to free the Philippine Islands from Spanish domain'... as there were plans and projects more or less utopian to free Cuba.
That's the hard part: integration. In an age where nationalism was recent, there was not notion of what a "Platinean" "Peruvian" or "Mexican" are. Most of the people was not aware of what was happening, they only did they job and nothing more. Heck,
most didn't even speak Spanish. Wheter a territory stayed part of a country depended in the interest of the ruling classes there. They wanted authonomy, be able to do what they wanted, but still have defense and beneficies from a Central Government. That's the reason a lot of unification projects failed. It's true that such an state would try to stop the consolidation of the Brazilian Empire. A short lived state, Rio Grande do Sul, secceded, and ITTL it would be able to remain independent with Platinean support.
La Plata would have a great advantage since they have a good climate and lots of land, so getting inmigrants should be easy. By any means, Spaniards and Italians, perhaps even the Irish, would prefer it over the US because it's catholic and closer to their culture.
Keeping that territory would only be possible if something like the Aranda plan happens, because without it La Plata has no means of reaching and taking it.
"Liberating the Caribbean" eh? Well, Bolivar wanted to invade Cuba and Puerto Rico with his Gran Colombia, but the project was stopped when the country was dissolved. New Spain or New Granada seem more likely to try such a project, since both the Caribbean and the Philipines are very far from La Plata.