Why North Korea wants a summit with Trump

President Trump accepted an invitation last week to meet with North Korean leader Kim Jong Un, a surprising breakthrough after a flurry of diplomatic activity between North and South Korea in February.

After a long period of tense hostilities, what’s behind the apparent North Korean olive branch?

North Korea’s sudden turnabout is remarkable, given the barrage of nuclear and missile tests over the past two years — including 17 full-flight missile tests in 2017. Last September, the regime conducted its sixth and largest nuclear test to date.