警惕！日本借反无人机发展激光武器

Core Viewpoint - The Japanese government plans to revise three security-related documents within the year, focusing on strengthening air defense measures against drone attacks, influenced by the tactics observed in the Russia-Ukraine conflict [1]. Group 1: Air Defense Strategy - Japan's Self-Defense Forces currently rely on the domestically produced "Type 03 Medium-Range Surface-to-Air Missile" to intercept drones, but this system is limited in the number of targets it can engage simultaneously and is cost-inefficient when using expensive missiles against cheaper drones [3]. - The Self-Defense Forces are requesting the introduction of new air defense missiles and high-power laser weapons to adjust their strategy for intercepting drones [3]. Group 2: Development of Laser Weapons - The Japanese Ministry of Defense is developing high-power laser systems capable of shooting down small drones, with dedicated funding for research and testing included in recent defense budgets [3]. - In the fiscal year 2026 budget proposal, Japan allocated 1.3 billion yen (approximately 58 million RMB) for the development of high-power microwave weapons that can intercept multiple drones simultaneously [3]. Group 3: Testing and Implementation - A vehicle-mounted high-power laser demonstration system was showcased at the 2025 Japan Defense Exhibition, successfully shooting down small drones during tests conducted in February and March of the same year [3]. - A larger power laser weapon system, intended for installation on Japan's Maritime Self-Defense Force vessels, is currently in prototype testing, designed to combine multiple 10-kilowatt fiber lasers into a 100-kilowatt system capable of penetrating metal surfaces [4]. Group 4: Strategic Implications - The Ministry of Defense believes that high-power laser weapons could be a "game changer" on the battlefield due to their low operational costs, immediate response capabilities, and virtually unlimited ammunition capacity under sufficient power supply [5]. - Integrating such laser weapon systems into the Self-Defense Forces' operational framework indicates a shift towards more diversified and adaptable defense capabilities [5].