Who are the Soviet and US? It was World War II. After World War II,the Soviets and Americans liberated parts of Korea.
Soviets installed their communist regime in the north and Americans their own in the south. That's how things are.
Soviets got all of Eastern Europe as well.
China and USSR supported Kim Il-Sung though and the DPRK from the beginning.
Not all people want to be ruled by communists. South Koreans didn't consider the North's invasion as "unification",but as annexation. Same like the majority of people of South Vietnam during the war.
Japanese lost war against allies of us,china,soviet,uk and more and they left as a result of it,after which only the US refused to leave korea ,installed a puppet regime, and still occupies Korean sovereignty.
Not all people want to be ruled by communists. South Koreans didn't consider the North's invasion as "unification",but as annexation. Same like the majority of people of South Vietnam during the war.
Kim il sung was actually a heroic figure in Korea with overwhelming popularity, before all the CIA media took hold of the south and mainstream narrative,meanwhile Ameirca created and supported their puppets that are no less than terrorist in origin against common will.
The DPRK held an election on August 25, 1948 which unlike the ROK election included South Korean votes as well. 212 deputies were elected by the North, and 360 deputies were elected by the South for the Supreme People's Assembly.The first session of the Supreme People's Assembly was held on September 2, 1948, and based on the election results Kim Il Sung as elected Head of State and Premier of Cabinet.
US military and their enablers brutally quashed any opposition after creating puppet leaders ,wholly trained and funded by Washington,south Korean leaders and their gov isn't natural in origin .It is a disgracefull puppet regime that kept foreign western military on their ancestral land.
Neither the soviets nor the chinese invaded korea and killed 10% of koreans to install a friendly dictator. After liberation it was korean buinesss ,korean civil affair not the US .