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  1. Japan to expand ballistic missile defence with ground-based Aegis batteries

Japan to expand ballistic missile defence with ground-based Aegis batteries

Japan formally decided on Tuesday it would expand its ballistic missile defence system with U.S.-made ground-based Aegis radar stations and interceptors in response to a growing threat from North Korean rockets.

By: | Tokyo | Published: December 19, 2017 8:27 AM
japan, japan ballistic missile defence, Aegis batteries, North Korea, United States, THAAD, Ashore batteries, Shinzo Abe, japan defence, north korea nuclear program, Aegis missile defence system A proposal to build two Aegis Ashore batteries was approved by Prime Minister Shinzo Abe’s Cabinet. (Reuters)

Japan formally decided on Tuesday it would expand its ballistic missile defence system with U.S.-made ground-based Aegis radar stations and interceptors in response to a growing threat from North Korean rockets. A proposal to build two Aegis Ashore batteries was approved by Prime Minister Shinzo Abe’s Cabinet. The sites without the missiles will likely cost at least $2 billion and are not likely to be operational until 2023 at the earliest, sources familiar with the plan told Reuters earlier.”The threat posed to our country by North Korea’s nuclear and missile development has reached a new stage,” the defence ministry said in a statement. The decision to acquire the ground version of the Aegis missile-defence system, which is already deployed on Japanese warships, was widely expected. North Korea on Nov. 29 tested a new, more powerful ballistic missile that it says can hit major U.S. cities including Washington, and fly over Japan’s current defence shield.That rocket reached an altitude of more than 4,000 km (2,485 miles), well above the range of interceptor missiles on Japanese ships operating in the Sea of Japan.

North Korea says its weapons programmes are necessary to counter U.S. aggression. The new Aegis stations may not, however, come with a powerful radar, dubbed Spy-6, which is being developed by the United States. Without it, Japan will not be able to fully utilise the extended range of a new interceptor missile, the SM-3 Block IIA, which cost about $30 million each. A later upgrade, once the U.S. military has deployed Spy-6 on its ships around 2022, could prove a costly proposition for Japan as outlays on new equipment squeeze its military budget. Initial funding will be ring-fenced in the next defence budget beginning in April, but no decision has been made on the radar, or the overall cost, or schedule, of the deployment, a Ministry of Defence official said at a press briefing.

Japan’s military planners also evaluated the U.S.-built THAAD (Terminal High Altitude Area Defense) system before deciding on Aegis Ashore. Separately, Minister of Defence Itsunori Onodera said this month Japan would acquire medium-range cruise missiles it can launch from its F-15 and F-35 fighters at sites in North Korea, in a bid to deter any attack. The purchase of what will become the longest-range munitions in Japan’s military arsenal is controversial because it renounced the right to wage war against other nations in its post-World War Two constitution.

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