U.S. Space Force launches first unit in Japan
The U.S. military’s Space Force has launched its first-ever unit in Japan, part of an effort to boost coordination and interoperability with its ally, including the Air Self-Defense Force’s own Space Operations Group.
Activated on Wednesday, U.S. Space Forces Japan — a component similar to the one established at South Korea’s Osan Air Base in 2022 — will operate out of Yokota Air Base in western Tokyo with a staff of about 10 and be subordinate to U.S. Forces Japan, which is set to be reconstituted into a joint force headquarters next year.
Part of a larger U.S. push to increase collaboration with allies in the space domain, the unit is expected to help boost deterrence and improve coordination in responding to challenges amid shared concerns about the increasingly advanced space technologies of rivals such as China, Russia and North Korea.
Defense Minister Gen Nakatani and U.S. Defense Secretary Lloyd Austin said last month in Australia that this will also include cooperation on low-Earth orbit satellite constellations to deal with advanced missiles carrying hypersonic glide vehicles and “other threats.”
Speaking in Washington in October, the U.S. Space Force’s Indo-Pacific commander, Brig. Gen. Anthony Mastalir, said that having units in both South Korea and Japan would help drive integration not just with other U.S. military components, but also with host nation militaries.
James Schoff, an expert on the alliance at the Sasakawa Peace Foundation USA, said the U.S. unit will be working closely together with its Japanese counterparts to build out a bilateral cooperation agenda and exploring ways to connect with other partners.
“There will be information sharing, collaborative planning, getting to know each other’s organizational culture, capabilities and how decisions are made,” he said, adding that the unit will also facilitate personnel exchanges, improve communication and help overcome technical barriers such as incompatibility of software or systems.
Tokyo and Washington already collaborate in activities such as space domain awareness (SDA) — the tracking of man-made and natural space debris that can damage existing satellites — as well as allowing for “hosted payloads” or sensors to be placed on each other’s satellites to expand coverage more cost-effectively.