Japan will deploy an electronic warfare air-defense unit on Yonaguni Island in 2026, enhancing its defense posture just 110 kilometers from Taiwan. This unit will focus on land-based jamming against enemy aircraft, aiming to disrupt radar systems, and is part of Japan’s broader strategy to fortify its southwestern islands’ defenses. The initiative, emphasized by Japan’s Ministry of Defense as a self-defense measure, aims to deter potential threats while assuring local residents of safety, as the electromagnetic waves used are comparable to mobile phone frequencies. This development underscores Japan’s commitment to regional security amid growing tensions in the Indo-Pacific, particularly regarding Taiwan and surrounding areas.