Is the second part actually true though? I can't find any sources about this, in fact the opposite seems to be true. North Korea recently changed their constitution and describe South Korea as a "hostile state" which means they officially recognize it as a "state" at least[1]. Before that they explicitly had a goal for unification in the constitution which implies (or can be implied) that there never was such a view that "the entire Korean peninsula has remained united under the rule of the Korean Workers’ Party". There is also this sentence:

>This North Korean world map is centred on the Pacific Ocean, which gives Korea a privileged position on the global stage

This is normal for asian maps, Japan does the same thing for example.

[1] https://www.reuters.com/world/asia-pacific/north-korea-repor...

Yeah, I'm kindof skeptical. Another example I found was Kim referencing the south in a TV speech. I think their official position might be something closer to that the war was victorious by virtue of holding off the Americans and/or removing them from the area. Then the atlas doesn't show the south as a separate country because it's more of a Taiwan situation where they don't want to legitimize it as anything more than a rebellious province? At least in the early 2000s when this atlas was made. The language at the time definitely seems to emphasize that the whole peninsula is just "the nation": https://en.wikipedia.org/wiki/June_15th_North%E2%80%93South_...

>> This North Korean world map is centred on the Pacific Ocean, which gives Korea a privileged position on the global stage

> This is normal for asian maps, Japan does the same thing for example.

This is common in Australia too.