On May 29, the Sejong Institute held the 10^th Colloquium for 2018 on China’s nuclear strategy in the Era of Xi Jinping. Moderated by Dr. Seong-chang Cheong, the colloquium featured a presentation of Dr. Seong-hyon Lee. Dr. Lee analyzed the history of China’s nuclear weapon development and US assessment on China’s nuclear strategy, and evaluated China’s nuclear strategy under Xi Jinping and its implications