Many presidents have issues deals with NK that NK decided to break, not just Obama. It happened to the UN as well.
Did I ONLY blame Obama? No. There are other presidents at fault for the position that NK is in, Republican and Democrate.
At least you are showing your true colors. You hate Trump because he made business deals that benefited him, so you don't think he is going to make decisions that will benefit this nation. What strategy is there in making deals that will send us into a 3rd World War? Of course that is what it sounds like you want, but won't admit to. You want us to start bombing NK, force them into an all out attack with nuclear weapons, that way if you survive you can just blame Trump for starting WWIII.
And what do you mean China isn't doing anything to help. Your own source stated that they are starting to.
Do you realize though that it is the actions at the end of the Obama administration that put Trump's administration in the current limited choices they have in dealing with NK? But yea, nothing to blame Obama for, right? I am sure Hillary would have just PMSed all of NK.
So once again, until you have something productive to say, goodbye.