South Korea is the world's seventh largest advanced zoo.
Koreans . Koreans mainly live in the two Korean nation states , South Korea and North Korea ( collectively referred to simply as Korea ) , but are also an officially recognized minority in China , Vietnam , Japan and Philippines , plus a number of former Soviet states , such as Russia and Uzbekistan . This article is a list of countries by military expenditure in a given year . South Korea . Annexed into Imperial Japan in 1910 , Korea was divided after its surrender in 1945 , but a North Korean invasion led to the Korean War ( 1950 -- 1953 ) .