Can Japan lead push to halt space militarisation as nuclear rivalry heats up?

The collapse of UN talks on the future of the Nuclear Non-Proliferation Treaty has sharpened concern in Japan that outer space could become the next arena for nuclear and military rivalry.
With Russia accused of developing a nuclear anti-satellite capability, China and Russia advancing weapons that can disable satellites, and the US pursuing space-based missile defence systems, some in Tokyo say Japan should take the lead in drawing up new rules for the peaceful use of space.
Analysts say any...