I made my first colony in Brasil and I occupied land of some "Tapuia" Indians neighboring to my colony. But in peace negotiations I see only "Force migration". I cannot annex them or claim the province. What is the problem? Perhaps I have wrong casus belli. It seems I'm unable to get "conquest" casus belli against Indians?

  • Do I need research some tech/idea for that?
  • Maybe I need create some "core" in Americas first? How can I do that? Do I need to grow the colony to "City" first?

background (not necessary to read):

I play play Bohemia at year 1530 - it took me long time to get to the sea. I started to think about colonization only after I became HRE Emperor and annexed Burgundy (including Holland). I terribly lag behind Portugal, Castil, England and even France in colonization. But my army is strongest in Europe (4000 man stronger than France and Ottomans).

In general I find it very hard to grow colonies (it is extremely slow, all other nations grow colonies much faster). I was thinking that by conquest of Indian lands can compensate my lack of exploration/expansion ideas, using strength of my army.

I have researched only "exploration" idea to "Quest for New world" stage. I don't have "expansion idea" yet. I have barely colonial reach to touch America (just Antilles + apex of Brasil).

Before I finished "Offensive" ideas, and picked "Influence" (which I regret, since I would prefer colonization over influence, but that was before I claimed Holland).

1 Answer 1


If you're using the "Force Migration" Casus Belli, you cannot take any territory, as discussed on this reddit link.

To take territory from natives, you need to fabricate claims and declare war with a conquest casus belli (requires a core or completed exploration ideas), or manufacture any other CB that lets you take territory (or you can declare with no CB, but that has strong consequences).

You can get a territorial core when your colony becomes a full city. If you have I believe the El Dorado DLC, then your Brazilian colonies will form a colonial nation when you have 5 cities in the region, at which point they'll start expanding on their own through colonization and conquest (though they'll be pretty slow until they're big enough to have a strong income).

A list of casus belli can be found here.

  • As a further note, the issue with a conquest CB is that migratory nations can simply move out of whatever province(s) you have claims on, preemptively ending the war. This has happened to me. Commented Oct 12, 2018 at 17:07
  • aha ... so I cannot conquare any land before I reach city in neihboring colony (since I don't have a core)? That is pretty sad :( ... I don't get how England was able to build those cities so fast, that now thay seal-club all the indians. By colony takes for ever (30 colonist per year => 33 years to make one city) ... do you recall colonist before reaching city (in order to make second colony?) Commented Oct 12, 2018 at 18:04
  • I usually do after about 500 population, yes. You don't want too many settlements at a time though unless you have a large income, because their costs scale exponentially. You can increase your colonists per year though (see eu4.paradoxwikis.com/Colonization#Global_settler_increase) Commented Oct 12, 2018 at 18:18
  • If I recall correctly you can't "no cb" when you have a cb. So, If you have the "Force Migration" cb you can't start a "no cb"-war.
    – Tom
    Commented Oct 24, 2018 at 8:12

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