C4iSR: Joint & Common Equipment

US, Japan agree to boost space, cyber-security co-operation

23 April 2019

The defence and foreign ministers of the US and Japan have agreed to boost co-operation in the fields of cyber security and outer space.

The ministers agreed for the first time that a concerted cyber attack against Japan could be considered an armed attack, as stipulated in the US-Japan Security Treaty.

“On cyber space issues, the ministers recognised that malicious cyber activity presents an increasing threat to the security and prosperity of both the United States and Japan,” they said in a joint statement released after their ‘two-plus-two’ meeting in Washington on 19 April.

“The ministers affirmed that international law applies in cyber space and that a cyber attack could, in certain circumstances, constitute an armed attack for the purposes of Article V of the US-Japan Security Treaty,” according to the statement.

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