My pseudonym is Ix wrote:The fighting stopped in '53, but only a ceasefire was ever declared rather than a true armistice. In the diplomatic sense, therefore, the two Koreas have been at war with one another for over 60 years
Additionally, this means that the United States, Canada, and many other countries are also still at war with Korea. On the other hand, North Korea has withdrawn from the "non-aggression pacts" at least a dozen times in the interrim. Theodore Roosevelt famously based foreign policy around "Speak softly, and carry a big stick." North Korea prescribes to the opposite viewpoint.
As for Berwick-Upon-Tweed, while a nice (and common) story, is not quite true. For one, the town was not actually included in the declaration of war either, so by the same logic that it continued to be at war until recently, it never was in the first place. Also, while Berwick did have special status in documents, declarations, and treaties prior to the 18th century, the Wales and Berwick Act of 1746 defines "England" as including both Wales and Berwick-Upon-Tweed, specifically to avoid this kind of confusion (and it was long understand that this was the case, with Berwick's status in foreign affairs been settled since the union of Scotland and England in 1707). The parts of the Act relating to Wales were later repealed in the 1960s and 70s.
(Yes, I'm a history pedant).