Composure and consistency are hardly attributes that can be ascribed to U.S.-North Korea relations under the Trump administration. The shifts have been sharp and sudden. It went from aggressive hostility with mutual threats in 2016/2017, to an infatuated friendship and diplomatic breakthroughs in 2018, to new North Korean missile tests and threats in 2019 and 2020. This diplomatic turbulence makes it difficult to predict what lies ahead. – The National Interest