I think it is necessary to think of tribes or races when we talk about world peace, because wars or disputes related with tribes or races often break out. But for it is difficult fir Japanese to think of them for some reasons. At first, Japan is an island country and Japanese was the only tribes who lives in Japan. So there hadn't been no need for Japanese to think of the difference among tribes or races by the time when the world came to globalize. In addition to this, many Japanese except the people of Okinawa prefecture have never been occupied by other countries. In other words, Japanese heve never been hurt their pride being Japanese, and which makes hard for Japanese to understand how important the racial consciousness is.
So when Japan wants to keep good relationships with many countries which have problems related with tribes or races, it is very important never to think light of the racial consciousness although it is difficult for us.