How do I conquer a small neighbor without getting -99% warmonger popularity penalties

[JacksonTaus]

I've been playing as Vietnam for a few years, and I want to eat Cambodia. I significantly out-pop, out-GDP, and out-Military them. I managed to get our relationships red, and I built up decent relations with China in the hopes that they'd block for me at the Security Council (but I can win fast enough it doesn't matter).

I read somewhere that there's something about gathering evidence and presenting it to the UN. I have two questsions - (1) how do I do that, exactly, and (2) can I frame them if they're not building nukes or whatever?


EDIT: When Kailvin did it in his video back in October, he took only a 30% hit (which is manageable) instead of a 90% hit, but I don't see him doing any sort of evidence gathering. What am I missing? https://www.youtube.com/watch?v=oBXuFt5HEgo&index=7

[JacksonTaus]

OK so apparently maximizing your state security (under Police) really helps and lets you avoid the auto-kill

[Boomer21]

A way to do this is to political spying on Cambodia. When you do this, your new minstrel agent within their administration will not only offer to assassinate their leader occassionally, but he will also report things like whethe they are trying to start a nuclear program, purchase nukes, or if they are funding terrorist groups. Keep in mind that you need PROOF of these actions in order for the UN to back military action against them. When I say proof, I mean the minstrel target will tell you whether he simply has suspicions or if he has the actual proof. Once when you go to the UN about the issue and ask for military action, they will usually allow you to declare war without penalty.