By Akhilesh Pillalamarri
As North Korea’s continued missile launches demonstrate, a country with an advanced missile program in tandem with a nuclear capability can operate at a high level of impunity in defiance of the international community, global sanctions notwithstanding.
What North Korea seems to have discovered, based on lessons from places such as Libya and Iraq, is that the best leverage any state could have against regime change, or international pressure aimed at changing regime behavior, is the possession of nuclear weapons combined with a delivery system that allows such weapons to be deployed against the United States and other Western states
http://thediplomat.com/2017/09/could-north-koreas-example-inspire-iran-and-pakistan/