Original sentence: " Though elections were scheduled, the two superpowers backed different leaders and two states were effectively established, each of which claimed sovereignty over the whole Korean peninsula
Edited sentence: " Underlying this decision by the US and USSR was the assumption that Koreans were incapable of self-rule and therefore needed the rule of larger nations.Though elections were scheduled, the two superpowers backed different leaders and two states were effectively established, each of which claimed sovereignty over the whole Korean peninsula