"Requires conquering X"

[LordBlade]

What exactly does this mean?

I'll see something like "Requires conquering Black Naga". Okay, I've killed a few and there's no more on the map that I can see. So how do I do it?

Or "Requires conquering Shapeshifter". Well, I killed a Shapeshifter. Now what?

[FlareFluffsune]

I also would like an answer to this. I've killed numerous monsters, (1300 at the time of this post) but when I try and recruit prisoners I get the "Requires Conquering X" but as far as I have found so far on my map there is no Black Naga tribe, and randomly it requires conquering a bandit tribe which I don't commonly find.

[Adversary]

You have to kill all the members of the tribe in order to conquer it, not just the leader as that's what stops immigration and thus unit replenishment. This may be an issue if, say, some of the members are fast and/or can fly and you did not bring any units with ranged attacks, magic or sources of levitation and/or speed.

Of course, all members of the tribe I mean everyone who is an enemy combatant - children, civilians, cattle and chattel do not count so you can ignore them if you want. You'll miss out on experience, sure, but that is something to keep in mind.

- EDIT/ADDENDUM -

As for more specifics, well obvious if it's a unit with either flying or speed it might be either outrunning you or somewhere you can't reach. If you're indoors, a source of night vision will help greatly as you will be able to see further. Likewise, telepathy will help in general as that allows you to detect enemy units without needing direct line of sight.

If you're outdoors and there's trees, your options are either fire or a source of elf vision. And of course, the Shapeshifter is technically the leader of a tribe. You still have to kill the rest of the enemy combatants on that particular level. The verbiage regarding that requirement is not clear, I will admit.

Unless I'm wrong about that, in which case I'm remembering wrong but then again I'm pretty sure I'm not given my track record regarding this game. But there's only one way to find out and that's by putting this theory to the test.

Wonder whose homework that'll be.

[Vampyr]

I personally have never seen the inability to obtain a prisoner after receiving the message "tribe has been killed" obviously thats not it exactly but you get what I mean. However I may have wiped out all the combatants in each tribe I'm pretty scorched earth. My army predominately consists of ranged attackers. One thing to note is especially in ruins just stop your army and have one guy run through the monster will eventually get cornered or run into your stopped guys. The only way this might not work is in some underground ruins because they are too convoluted and have too many openings.