Russian President Vladimir Putin makes a diplomatic advance towards Japan, aka "The Land of the Rising Sun," stirring international interest. This ties up with Russia's historical relations with Japan and has major implications on the international diplomatic stage. The details of the engagement and its consequences are yet to be unraveled.
In Japan, foreign relations, particularly with neighboring countries like Russia, are of high interest due to geopolitical and historical reasons. The ongoing diplomacy issue of the Northern Territories (Kuril Islands) dispute is a significant concern for many Japanese. Any development in relations with Russia, thus, is followed closely by both political analysts and the general public.
In the US or EU, foreign policy is also a subject of national importance; however, the angle of interest might differ. The US usually focuses on Russia's role in NATO, European security, and recently, cybersecurity, whereas Japan is more interested in territory-related diplomacy.