Original sentence: After the war Finland experienced times of economic hardship, and also substantial insecurity with regard to the Soviet Union's plans for Finland, which resulted in  the delay of the return of the children for several years.During World War II some 70,000 Finnish children () were evacuated from Finland to chiefly to Sweden and Denmark and also to Norway.The exact figures remain unknown.Ultimately about 20% of the war children stayed with their foster families after the war, who often adopted them, which spared them another traumatic separation
Edited sentence: After the war, Finland experienced times of economic hardship, and also substantial insecurity with regard to the Soviet Union's plans for Finland, which resulted in the delay of the return of the children for several years.During World War II some 70,000 Finnish children () were evacuated from Finland, chiefly to Sweden and Denmark, but also to Norway.Ultimately, about 20% of the war children stayed with their foster families after the war, who often adopted them, which spared them another traumatic separation