Kim Jong Un has, in the last 18 months, met with the leaders of the US,
Russia, China, and South Korea. The only substantial neighbor left out
is Japan, and Premier Abe Shinzo seems to be hoping that he can get one too, offering an unconditional summit with Kim.
The offer is in keeping with Japan wanting to remain in the conversation
in the region, but Abe’s critics are hitting him hard over the offer,
saying he is risking ties with South Korea and acts more willing to talk
to Kim than South Korea’s President Moon.
It’s not at all clear that this is a one or the other case, and South
Korea has welcomed other nations talking with North Korea as part of an
effort to foster peace. Japan’s tensions with South Korea appear to be
distinct, and centered on World War II.
That might also be an obstacle for the North Korea talks though. Long
before Abe offered a summit, North Korea had issued a statement
criticizing Japan’s recent rearmament, and saying they would not be
interested in holding talks with them, a statement which also heavily
cited Japan’s occupation of Korea during the war.