A recent proposal to abandon South Korea’s preemptive strike system known as the “kill chain” has reignited debate over whether scaling back deterrence could help ease tensions with North Korea — or risk undermining security. Speaking to Korean correspondents at a briefing in Washington on Tuesday, Victor Cha, Korea chair at the Center for Strategic and International Studies, argued that moving away from this system could reduce escalation risk. Cha said he would recommend that South Korea disco