The 3 biggest threats for world stability are the following 3 nations:
1) China
2) Iran
3) USA (under the Democrats)
Russia might take over Ukraine and maybe a few other small nations but then he will eventually die
NK might do some parades with their missiles, but they are all bark.
The USA under the wrong leadership charges into random countries at random times, kills lots of people, and gets hated and eventually leaves. Don't deny it. Examine history. They may mean well, but they are clueless into how the rest of the world works. Especially Muslim countries.
Iran supports terror all over the world.
China, just by the fact that they have 1.5 billion citizens, means that they terrorize 1.5 billion people + any nation around them. Plus they give weapons to anyone that asks.