Advertisement
Japan
AsiaEast Asia

Japan’s use of Google Earth data to choose Aegis Ashore missile defence site labelled ‘inept’

  • Officials also face criticism for failing to carry out inspections of the candidate locations, fuelling fears among local residents about radiation produced by radar units

Reading Time:2 minutes
Why you can trust SCMP
The Aegis missile defence system in action in Hawaii. Photo: AP
Julian Ryall
Japan’s defence ministry is under fire after admitting it relied on erroneous data from the Google Earth app to narrow down potential locations for its state-of-the-art Aegis Ashore missile defence system.

Officials have also admitted they failed to carry out inspections of the candidate sites – an omission one defence analyst described as “inept” and which raised questions about the ministry’s decision-making processes.

Tokyo confirmed last year it was going ahead with the deployment of the ground version of the Aegis ballistic missile defence system to defend against missiles launched by North Korea and to complement Aegis destroyers already operated by Japan’s Maritime Self-Defence Force.
Advertisement

Potential sites for the bases have been identified in Akita prefecture, facing the Korean peninsula in the far north of Japan, and Yamaguchi prefecture, on the far southern tip of the country’s main island of Honshu, although there has been resistance from local residents.

Japan’s Maritime Self-Defence Force already operates destroyers with Aegis systems. Photo: AP
Japan’s Maritime Self-Defence Force already operates destroyers with Aegis systems. Photo: AP
Advertisement

In an interim report on the best sites released last month, the ministry said it had 19 locations but eventually decided most were not suitable because nearby mountains could block radar signals and limit the system’s effectiveness in tracking incoming missiles.

A local newspaper, the Akita Sakigake Shimpo, then requested access to the study and quickly realised the ministry had made an error in its calculations.

Advertisement
Select Voice
Choose your listening speed
Get through articles 2x faster
1.25x
250 WPM
Slow
Average
Fast
1.25x