Trump asked Japan to help with Golden Dome missile shield: Nikkei report

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FILE PHOTO: U.S. President Donald Trump speaks during a swearing-in ceremony for the new U.S. ambassador to China, former U.S. Senator David Perdue, at the White House in Washington, D.C., U.S., May 7, 2025. REUTERS/Leah Millis/File Photo

Tokyo's participation could allow it to win concessions in ongoing tariff negotiations with US President Donald Trump.

PHOTO: REUTERS

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TOKYO – US President Donald Trump discussed cooperating with Japan on developing technology for his planned

Golden Dome

missile defence shield during a phone call with Japanese Prime Minister Shigeru Ishiba in June, the Nikkei reported.

The two countries are expected to work together on systems to intercept incoming threats, and Tokyo’s participation could serve as a bargaining chip for it to win concessions in ongoing tariff negotiations with Washington, the paper said, without citing its sources.

Mr Trump in June said he had selected a design for the planned US$175 billion (S$225.54 billion) defence shield and appointed US Space Force General Michael Guetlein to head the project, which he wants to complete by the end of his term in 2029. The Congressional Budget Office estimates that Golden Dome could cost US$831 billion over two decades.

Japan and the US have previously collaborated on ballistic missile defence, including the joint development of an interceptor capable of striking warheads in space. REUTERS

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