South Korea doesn’t count, you can’t invade yourself
North Korea and South Korea were separate entities following the surrender of Imperial Japan, with the North administered by the Soviets and the South administered by the US. North Korea 100% invaded South Korea, both with troops and supporting insurgency groups.
They were not though, neither the communists nor the Japanese collaborators believed the line was a legitimate or permanent division of the country. The plan was always reunification and no Korean party accepted the terms you’re talking about.
Ironically there was an independent government emerging in the wake of the collapse of Japan but the US occupation outlawed it when they came in.
North Korea and South Korea were separate entities following the surrender of Imperial Japan, with the North administered by the Soviets and the South administered by the US. North Korea 100% invaded South Korea, both with troops and supporting insurgency groups.
They were not though, neither the communists nor the Japanese collaborators believed the line was a legitimate or permanent division of the country. The plan was always reunification and no Korean party accepted the terms you’re talking about.
Ironically there was an independent government emerging in the wake of the collapse of Japan but the US occupation outlawed it when they came in.