From Al-Jazeera…

Japan has said it is seeking to build an anti-missile system as quickly as possible and will move its Air Defence Command to a US military base.
The missile system will cover all of East Asia and have the potential to reach the northern tip of Australia and part of Alaska, a Japanese defence ministry report said on Friday.
The report also revealed Japan’s Air Defence Command would be moved to a US military base on the outskirts of Tokyo.
Japan’s defence ministry, in its first annual report as a fully-fledged ministry, said on Friday it would try to deepen its co-ordination with US troops.
Japan started working with the US on developing a system after North Korea shocked Tokyo by test-firing a long-range missile over the country in 1998.
‘Co-operation with US’
The annual paper said North Korea was “improving its capability of managing ballistic missiles” and “trying to further extend their firing range”.
North Korea’s ballistic missiles “are now regarded as more practical”, the report said.
“It is necessary to finish deploying a ballistic missile defence as quickly as possible,” said the report, adding that there was a need for Tokyo to strengthen co-operation with the US military.