The sister

"The first woman ever to issue the threat of a nuclear-weapons strike is not even officially a head of state. Kim Yo Jong is the sister of North Korea's Supreme Leader Kim Jong Un, and as their murderous regime's chief propagandist, internal administrator, and foreign policymaker, the most powerful woman in North Korean history. Cruel but charming, she threatens and insults foreign leaders with sardonic wit, issuing proclamations and denunciations in her own name, a first for any woman in the Korean royal family. She was brought up to believe it is her mission to reunite North Korea with the South or die trying. She is ruthless and incredibly dangerous. 'The Sister' is [an] account of the mysterious world of North Korea and its ruling dynasty--a family whose lust for power entails the brutal repression of civilians, a missile program that can reach the continental United States, and the constant threat of global havoc"--Provided by publisher.