North Korea calls Japan diplomatic paper a 'grave provocation'

North Korea has criticized Japan over a diplomatic paper, calling it a 'grave provocation'. The two countries do not have formal diplomatic relations and have a history of tension, particularly regarding Japan's colonial rule of the Korean peninsula. North Korea frequently criticizes Tokyo, and this latest incident is an example of the ongoing animosity between the two nations. The situation is being closely watched due to the sensitive nature of relations between North Korea, Japan, and other r