Commentary South Korea’s possible next leader wants the United States to redeploy to its territory tactical nuclear weapons that were withdrawn in 1991. But the Biden administration almost immediately turned down his idea, practicing pre-emptive disarmament in the face of North Korea’s ongoing nuclear missile buildup that has long been assisted by China. South Korean reports noted that on Sept. 22, the leading South Korean opposition presidential candidate, Yoon Seok-youl of the People Power Party, said that once in office he would “demand” the United States redeploy tactical nuclear weapons to South Korea. Yoon also wants Washington to begin a nuclear “sharing” arrangement that the United States has long employed with some of its North Atlantic Treaty Organization (NATO) allies. Belgium, Italy, the Netherlands, Germany, and Turkey “host” U.S. tactical nuclear bombs that, if required, can also be delivered by their combat aircraft. During its previous stationing in South Korea …