21.   Both countries claim ownership of all three islands.

22.   Both countries claim possession of a disputed group of barren islands.

23.   Both countries claim sovereignty over the islet.

24.   Both countries claim sovereignty.

25.   Both countries claim the islet, with South Korean coast guards posted on the isle, and Japanese ships patrolling the area.

26.   Both countries claim the islet.

27.   Both countries claim the territory and have fought two wars over it.

28.   Both countries claim the territory.

29.   Both countries claim to have killed tens of thousands of enemy troops, while refusing to disclose figures of casualties inflicted on its own forces.

30.   Both countries claimed the plane was shot down in their territory.