The Defense Ministry presented a detailed plan on Wednesday for new surveys at candidate sites for the deployment of the Aegis Ashore land-based missile defense system.

The new surveys are being conducted because the ministry used flawed data when giving explanations to a local government of its plans on setting up the missile system.

The government has chosen the Ground Self-Defense Force’s Mutsumi training area in Hagi, Yamaguchi Prefecture, and the GSDF’s Araya training area, in the city of Akita, as candidate sites to host the missile defense system.

The ministry informed the Akita and Yamaguchi prefectural governments of its new survey plans.

It is likely to take six and a half months before the results of the survey in Akita will be ready, the ministry said.

The central government is aiming to launch the Aegis Ashore system in fiscal 2023.

The ministry will conduct laser surveys in cooperation with private organizations using aircraft at the Araya training area and 19 other potential locations, all on state-owned land, in the prefectures of Akita, Aomori, and Yamagata.

The ministry will open bidding for firms wanting to participate in the surveys as early as September.

For the Mutsumi training area, the survey is expected to take two months as the altitudes of the nearby hills need to be measured, the ministry said.

In data presented to the Akita Prefectural Government, miscalculations were made with regards to the radar angle needed to operate the system at some proposed sites.

Local opposition has been rising due to the flawed data.

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