In an escalating exchange of words, China has again sent a letter to the United Nations, criticizing Japan. The specifics of the criticism remain undisclosed and it is unclear what immediate ramifications this will have. However, it serves to underline the ongoing tense relationship between the two largest powers in East Asia.

This news is significant in Japan as it hampers the relationship between the two countries that are tied economically and geographically. Japanese people's concerns generally center around the potential for conflict and disruption to trade, since China is a major economic partner. The uneasy historical and territorial disputes also weigh heavily in the minds of the Japanese public.

Similar to the US or EU, diplomatic disagreements or criticisms are often communicated through letters involving international organizations like the UN. However, the context greatly differs given the long history, geographical proximity, and specific political issues between Japan and China, compared to trans-Atlantic relationships.