I want to talk about how the world are misunderstanding that Dokdo = doghae is Japanese's territory

Hi! Mr. Obama, I'm Joshua and I'm from South Korea. Currently, I'm living in Minnesota ( Faribault ). I'm here to talk about a small island between Japan and Korea " Dokdo " and a sea called " Donghae ". When I first came to America, I had to learn about the geography of the world. And I suddenly, realized it that instead of Donghae the map showed up with The sea of Japan. I was like what the... what kind of situation is this. It's our territory but why american thinks that it's japanese territory. Even though, like in spring break or winter break when I go to my home ( South Korea, Seoul ) I can see lots of articles or news that Japanese government is keeping arguing that Donghae and Dokdo is their territories. Mr. Obama I beg you, please let the world know the truth.