What are the conflicts between Japan and surrounding countries?

Answer 1

There are no conflicts - Japan and its neighbours are not physically fighting. However, they have disputes.

1. On a large scale, with North Korea, due to their testing of nuclear warheads - this conflicts with every nation, except North Korea obviously.

Many land disputes:

2. Territorial desputes with South Korea, over a few islands between two countries - this disregards the island's geographic location (closer to South Korea) and the fact that it has been patrolled by South Korea since the end of WW2.

3. Territorial desputes with China (and Taiwan) over a few islands between the two countries.

4. Territorial desputes with (the) Philipines over a few islands between the two countries.

Other disputes: ... there are so many. Basically, it all started with Japan's "Westernisation" process earlier than its neighbours. This lead them to finally successfully invade and colonise (then) Korea, and then South East Asian countries such as Philipines and Singapore. After Japan lost its power in these countries and region after WW2, and apologised to these countries, many of these countries have claimed that these apologies were not enough to heal the wounds after what Japan has done to their culture, land, resources, historical buildings/artifacts and people. This is further fueled by Japan's recent actions that show contradictions to their apology.