Route for Colombian expansion Post-Gran Colombian Dissolution?

I apologize if this has been asked before, but searching only showed threads about Gran Colombia.

Are there any ways for Colombia to expand outside of Gran Colombia, even if only in Influence? I am looking for annexations, protectorates, influence zones, etc. A few ideas I had that are of varying likelihood;

  1. Panama. I feel this one is self-explanatory.
  2. Costa Rica. Colombia and Costa Rica had a ton of tension over their border, perhaps this could lead to establishment of a protectorate or client state? I don't find direct annexation very likely here.
  3. Moskito Kingdom. Perhaps the British build a canal in Panama based on the French work instead of the US; instead of giving the Moskito Kingdom to Nicaragua, they give it to Colombia as part of the negotiations. Either annexation or protectorate seems possible here. Bonus! Gran Colombia did claim the region.
  4. Dominican Republic. In the 1820's the Dominican Republic tried to join Gran Colombia, maybe they ask Colombia for annexation instead of the US? Bonus! Historic basis and Colombia would likely agree if offered.
  5. Haiti/Nicaragua. Maybe Colombia establishes client states in these countries if they gain the areas bordering them?
  6. Venezuela. Similar to Costa Rica, perhaps their border dispute leads to war and the Colombian claims are recognized. Not much land can be taken this way, but it's a route.
  7. Ecuador. The situation with Ecuador's borders was a shit show. Perhaps Colombia can either take more land or even establish a client state in the country. I don't really have any ideas for this one.
  8. Brazil. Colombia doesn't sell their inner Amazon holdings, end of story.
  9. Colonies? This is the least likely, but maybe the more powerful Colombia we're building might go after a prestige colony in the Pacific or [even less likely] Africa?
If anyone has any other ideas or responses to the above, that would be extremely helpful
 
You'll run into a few big problems regarding Colombian expansion: legally, all Latin American states agreed to draw up their borders through the old Spanish ones, which means any expansion beyond the borders of New Granada would violate uti possidetis iuris pretty instantly; plus, you need to stabilise Colombia a lot to allow any degree of foreign meddling or even exerting of influence until the late 1900s. that being said, your ideas are pretty plausible:

  1. Panama. I feel this one is self-explanatory
Panama was Colombian until 1903, so with the right POD they mucht not even lose it, which means they wouldn't have to conquer it.

  1. Costa Rica. Colombia and Costa Rica had a ton of tension over their border, perhaps this could lead to establishment of a protectorate or client state? I don't find direct annexation very likely here.

There was a time where the Viceroyalty of New Granada would administer Costa Rica. I don't know about any territorial disputes (other than the time we tricked Costa Rica into them giving us half of what should've been their EEZ) but I think this is the easiest non-GC expansion route.

  1. Moskito Kingdom. Perhaps the British build a canal in Panama based on the French work instead of the US; instead of giving the Moskito Kingdom to Nicaragua, they give it to Colombia as part of the negotiations. Either annexation or protectorate seems possible here. Bonus! Gran Colombia did claim the region.
Colombia claimed the Miskito Coast well into the 1920s and actually had the legal claim to the Coast as per uti possidetis iuris (Spain had transferred ownership of the coast to New Granada in the early 1800s), so this one is extremely likely.

The US not inheriting French efforts in Panala also probably butterflies away the loss of the Ithsmus (while interestingly maybe weakening Colombia's economy a bit, since the indemnization funds were what allowed Colombia to create its National Republic)

  1. Dominican Republic. In the 1820's the Dominican Republic tried to join Gran Colombia, maybe they ask Colombia for annexation instead of the US? Bonus! Historic basis and Colombia would likely agree if offered.

Colombia will need a more expansionist, or at the least pan-Latin American outlook to agree to the annexation, but sure, this sounds plausible.

  1. Haiti/Nicaragua. Maybe Colombia establishes client states in these countries if they gain the areas bordering them?

Definitely, with far more likelyhood in Nicaragua than in Haiti.

  1. Venezuela. Similar to Costa Rica, perhaps their border dispute leads to war and the Colombian claims are recognized. Not much land can be taken this way, but it's a route.
I actually think this is where most land can be taken, and especially most inhabitable land.

  1. Ecuador. The situation with Ecuador's borders was a shit show. Perhaps Colombia can either take more land or even establish a client state in the country. I don't really have any ideas for this one.
  2. Brazil. Colombia doesn't sell their inner Amazon holdings, end of story.

Colombia could get away with keeping most of their claims to the Amazon region and push into Peru and Brazil.

  1. Colonies? This is the least likely, but maybe the more powerful Colombia we're building might go after a prestige colony in the Pacific or [even less likely] Africa?
If anyone has any other ideas or responses to the above, that would be extremely helpful

A more powerful Colombia might want to set up some places from where to project power onto the Pacific, which would lead to seizing the Galapagos Islands and maybe a few Pacific islands. I don't see any more colonization than that.
 
You'll run into a few big problems regarding Colombian expansion: legally, all Latin American states agreed to draw up their borders through the old Spanish ones, which means any expansion beyond the borders of New Granada would violate uti possidetis iuris pretty instantly.

I didn't know about this. Just how big of a deal was this agreement? Would violating it result in a large scale war?

I don't know about any territorial disputes (other than the time we tricked Costa Rica into them giving us half of what should've been their EEZ) but I think this is the easiest non-GC expansion route.

Most of my knowledge on this comes from the unusually detailed Spanish Wikipedia page for the Costa Rica-Panama border, they have a ton of maps. The dispute mainly revolved around disagreement with the Bocas del Toro Region.

I actually think this is where most land can be taken, and especially most inhabitable land.

Any ideas just how much land Colombia could potentially take away from Venezuela? I was thinking they wouldn't take much more than what was claimed; what other land do you think they could take here?

A more powerful Colombia might want to set up some places from where to project power onto the Pacific, which would lead to seizing the Galapagos Islands and maybe a few Pacific islands. I don't see any more colonization than that.

Perhaps the client state in Ecuador and the Seizing of the Galapagos could also be merged into one conflict. Any ideas on what Pacific Islands Colombia might go after?
 
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