The korean war began in 1950 when the a)soviet union attacked south korea. b)united nations invaded north korea. c)communist north attacked the non-communist south. d)people of korea rose up against the japanese.

The Korean War (1950-1953) began when the North Korean Communist army crossed the 38th Parallel and invaded non-Communist South Korea. As Kim Il-sung's North Korean army, armed with Soviet tanks, quickly overran South Korea, the United States came to South Korea's aid. So its C

Ithink the answer is b : )