Nuclear Submarine Race: South Korea unveiled a “Basic Plan” for domestically built nuclear-powered attack submarines, aiming to launch the first in the mid-2030s and enter service later in the decade—while Lee Jae Myung ordered officials to speed up the push, framing it as a response to North Korea’s nuclear and missile threats. North Korea Response: Pyongyang fired multiple close-range ballistic missiles as Seoul ramped up the submarine effort, underscoring how fast the peninsula’s deterrence cycle is tightening. Quad Push: Quad foreign ministers launched new initiatives on maritime surveillance, port infrastructure, energy resilience, and critical minerals, with a “partnership of action” pitch aimed at keeping Indo-Pacific sea lanes secure. Inter-Korean Sports Diplomacy: A North Korean women’s football team returned home after winning the AFC Women’s Champions League—its first South Korea visit in eight years—yet the event failed to thaw ties. Cybersecurity: Lazarus Group-linked hackers rolled out RemotePE, a memory-only RAT targeting banks and crypto firms, using Telegram social engineering and staged access to reduce traces. Traffic Crackdown: North Korea expanded road rules banning smoking while driving, jaywalking, and walking pets without collars.