the korean war officially began in 1950 when\no south korea arrested and imprisoned thousands of…

the korean war officially began in 1950 when\no south korea arrested and imprisoned thousands of communists.\no north korea crossed the 38th parallel and invaded south korea.\no south korea held free elections but north korea did not.\no north korea sought the support of china and the soviet union.

the korean war officially began in 1950 when\no south korea arrested and imprisoned thousands of communists.\no north korea crossed the 38th parallel and invaded south korea.\no south korea held free elections but north korea did not.\no north korea sought the support of china and the soviet union.

Answer

Brief Explanations:

The Korean War started when North Korea crossed the 38th - parallel and launched an invasion of South Korea in 1950. This was the direct trigger for the start of the war. The other options are not the events that officially began the war.

Answer:

North Korea crossed the 38th parallel and invaded South Korea.