President Yoon Suk Yeol called on China to take steps to deal with North Korea's nuclear threats, in response to Beijing's criticism of the Washington Declaration, a statement issued by Yoon and U.S. President Joe Biden agreeing to upgrade the bilateral security alliance to a nuclear-based extended deterrence. “If China wants to raise objections to and criticism directed at us for upgrading the security cooperation between Seoul and Washington to a nuclear-based extended deterrence, it should at least make efforts to reduce nuclear threats (by North Korea) or abide by international law regar...