Air Force Global Hawk reconnaissance drone

WASHINGTON: As Japan undergoes the deepest rethink of its defense posture since the end of the Second World War, some big-ticket acquisition programs appear to be on shaky ground as the country retools to counter a rapidly modernizing Chinese military.  

Tokyo put the brakes on two planned Aegis Ashore missile defense systems set to be built on the mainland, a surprise June move that came after local communities protested about the powerful radars and possibility that rocket debris could fall on local communities.

That reversal on a major $2.1 billion program led to questions over what other changes the government of Shinzo Abe might consider as it retools its defense strategy and considers funneling more money into offensive strike weapons, as opposed to purely defensive systems.

Earlier this week, fresh reports emerged from Tokyo that the government might also be reconsidering its purchase of three Global Hawk UAVs, which would provide long-endurance surveillance capabilities. 

One source with knowledge of the program said, despite the reports, the Japanese government has indicated it supports the Global Hawk program, even in the face of possible divestiture by the US Air Force of its block 30 variants, the same version Northrop Grumman is making for Japan. 

Despite the moves in Washington, South Korea is still in the process of buying four block 30 Global Hawks, the first of which was delivered in April. Further south, Australia purchased six MQ-4C Tritons — the maritime version of the Global Hawk — with the first three to be delivered between 2023 and 2025.

With those allies remaining in the program, and the US flying the drone from Guam on a seasonal basis, the allies have started to build a powerful, long-endurance sensor layer, along with its attendant supply chain.

That sort of capability would fit within plans the Indo-Pacific Command pitched to the Trump administration earlier this year to invest billions in joint infrastructure across the region. The proposal has found bipartisan support on Capitol Hill, with the Republican-controlled Senate’s version of the annual defense policy bill including $1.4 billion for an Indo-Pacific Deterrence Initiative, while the Democratic-controlled House had $3.6 billion for an Indo-Pacific Reassurance Initiative focused on shoring up allies and partners. A conference committee will have to thrash out the differences and fill in almost all the details this fall.

The Japanese Ministry of Defense did not respond to questions on the issue by publication.

“Unmanned systems are going to be vital — in particular underwater unmanned systems and also aerial unmanned systems — given that Japan is an archipelago,” Ryo Hinata-Yamaguchi, professor at Pusan National University, said during a virtual event sponsored by the Atlantic Council on Wednesday. “Those are the domains that are most vital to Japan’s security. It’s really about Japan thinking about what we can afford to do, what we need to do.”