Update: This article’s headline was changed, from “How the UN may cause trouble for Trump’s “maximum pressure” policy”, at the request of the author. 

The White House has decided to pursue “maximum pressure and engagement”, having completed its DPRK policy review last month. Opinion is split about what effect more pressure will have: some argue it might help denuclearize North Korea, others argue it will make it dig in its heels. This question was covered here, but is not the focus of this article. Instead, here we will look at three current difficulties facing the U.S