" One by one western democracies were rolled up on German terms; Denmark and Norway in April and the Netherlands, Belgium, Luxembourg and France in May and June of 1940. The United States, Canada, and Australia had formidable immigration barriers in place, "

― Matthew A. Rozell , A Train Near Magdeburg: A Teacher's Journey into the Holocaust, and the Reuniting of the Survivors and Liberators, 70 years on