Trump’s new strategy might have little legal effect on the Iran nuclear deal, but it will undermine it politically, and exacerbate many regional problems.

Trump has failed to learn from the success of the Iran nuclear deal and to apply those lessons to North Korea. His failure risks the future of nonproliferation.

The threats of military force and sanctions have failed to produce the desired outcomes. It is imperative that the Trump administration listen to reason and take a pragmatic approach.

To follow a common security approach that recognizes the interrelations and interdependencies between countries, Washington must step back and reassess the moral and practical implications of its foreign-policy commandment “Do as I say, Not as I do” when it comes to nuclear weapons.

In many ways, the current nuclear standoff between North Korea and the U.S. can be traced back to the former’s inclusion into the UN in 1991. Establishing a geopolitically neutral “federation” among the Koreas would actually be a viable path of compromise.

Moon needs practical and operational measurements and outcomes, as well as ambition and determination to tackle the challenges of inter-Korean relations. And yes, there surely are opportunities and advantages for the South Korea to take. But the government has to be very careful to turn them into positive forces, so that a revival of “Sunshine” isn’t weakened to mere “Moonlight” as the pessimists have predicted.

Particularly after the election of the progressive Moon Jae-in as president of South Korea, it is opportune to consider whether American policy toward the North is due for a radical rethinking.