tl;dr:

Japan's Self-Defense Forces have been testing Starlink since March with the system deployed in about 10 locations and in training, Yomiuri newspaper reports. TOKYO, Japan - Japan's military is testing Elon Musk's Starlink satellite internet service with an eye to adopting the technology next fiscal year, the Yomiuri newspaper reported on Sunday, June 25, citing unnamed government sources. The Ministry of Defense already has access to communication satellites in geostationary orbit, but use of Starlink technology, operated by Musk's SpaceX, would add a constellation of satellites in low Earth orbit, the Yomiuri said. Japan's Self-Defense Forces have been testing Starlink since March with the system deployed in about 10 locations and in training, the newspaper said. Musk said in October SpaceX could not afford to indefinitely fund Starlink's use in Ukraine.

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The adoption of starlink by the military is the last nail in the coffin for ground based astronomy.

I saw starlink up in the sky a little while ago. Kinda ruins the night sky. People have been drawing inspiration from the stars forever, and it feels weird that future generations may not be able to do the same.