Is North Korean Different From South Korean?

How different is the language of North Korea from that of South Korea? Are there syntactic and grammatical differences due to the isolation of North Korea? In 2004, North and South Korea made a historic agreement to compile a “grand dictionary of the national language” (Gyeoremal-keunsajeon). Historically hostile relations between the two Koreas meant that cultural cooperation — any cooperation — between them was a rarity, but inter-Korean relations in those years were enjoying a thaw, and langu