Japan is preparing to acquire a new generation of coastal defense missile systems under its 2026 budget request, reflecting a focus on protecting its remote southwestern islands.
The Japan Self-Defense Force plans to procure 11 launchers for the Multi-Purpose Missile System Kai, according to Ministry of Defense budget documents cited by USNI News.
The system is intended to counter amphibious landings and armored threats and is listed as a major acquisition project for the upcoming fiscal year.
Focus on Coastal and Amphibious Threats
The Kai succeeds earlier short-range systems, including the Type 96 multi-purpose missile, originally developed during the Cold War and since adapted for evolving regional threats.
It can engage multiple targets simultaneously, including landing craft, amphibious assault vehicles, air-cushion vessels, and armored vehicles.
Japan’s Acquisition, Technology & Logistics Agency noted the upgraded system offers longer engagement range and multi-target capability.
It is expected to complement Japan’s longer-range anti-ship capabilities, including the Type 12 missile and future cruise and hypersonic missile programs/
Together, they form part of a broader effort to establish layered coastal defense and area-denial capabilities around Japan’s outlying islands.
Other recent expansions include new bases and deployment of coastal defense units across the Nansei (southwestern) chain, stretching toward Taiwan.
The government has cited a “severe and complex security environment” as justification for the enhanced military presence.
The 2026 budget also funds Synchronized, Hybrid, Integrated, and Enhanced Littoral Defense, planning multiple unmanned systems to improve surveillance and response to potential amphibious operations.
Other Recent Japanese Defense Developments
Japan has recently engaged in increased arms procurement and development, largely due to China’s increasing presence in the region.
The US State Department approved a possible $82-million sale in November, comprising precision-guided munitions, general-purpose bombs, guidance kits, and related equipment to Japan.
Also last month, the Japan Self-Defense Force tested the deployment of its first hypersonic missile system, which was rushed into mass production in response to growing threats from North Korea and China.
Additionally, Tokyo commanded five jet-powered drones inside a helicopter during a breakthrough flight in November. A video showed pilots managing the drone swarm in real time from a Bell 205 cockpit.
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