system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: The implications of North Koreas nuclear test?

Is there going to be anything to worry about? Are there any really impactful ramifications for them?
gpt
North Korea has a very broken farming system and is running out of food again, and it needs to get food from somewhere. Because it made other countries angry, they haven't been giving it food for awhile. NK leaders would look very bad if their people got hungry, so NK does this nuclear test that the whole world can see.  It is a clever plan: it embarrasses world leaders in China and the US, who had told their people that they would stop NK from testing bombs, and makes them pay attention to NK.

Here's how it works: the US and Chinese leaders need to look good to their people, which means they need to look like they are doing something to make NK stop. They need NK to show up to talks and promise to the whole world that they will stop making these bombs, at least for awhile. Now, NK then says they won't come to talks unless they get food (from US) and oil (from China). Since the US and China need them to talk or they will be really embarrassed, they will give them these things.

The US gives food because it looks to US people like an act of kindness and can't be used to make weapons. However NK leaders need to look good to their people too, so they remove the American flags from the boxes of food and put NK flags on it, and tell their people THEY grew the food.

China is worried that without oil, NK will fall apart and make a mess.  Since they are neighbors, that mess could spill into China too. Maybe if they fall apart, the Americans will even move in, and that would be dangerous, because everyone in China knows how dangerous Americans can be! So China gives NK oil to keep them stable.  NK leaders tell their people it is a nice gift from China, given to NK because of how big and strong NK is after making a big bomb.

Nobody is REALLY worried about the bombs themselves because they are pretty weak and very heavy, too heavy to put on rockets and planes and stuff, so NK can't really get the bomb anywhere yet and can pretty much only blow up nearby mountains.  But it LOOKS and SOUNDS scary to most people, so the other leaders have to react.

So, NK gets the things it needs by doing something it shouldn't do, and promised not to do.  They have done it before and it worked, so they are doing it again.

TLDR: It is like throwing a tantrum because you are hungry, and making a lot of noise for no reason, and then you get fed.