And the foreigners can often use their time in Denmark as contribution credit to their own social security. Canada for example has a few such agreements, includ

And the foreigners can often use their time in Denmark as contribution credit to their own social security. Canada for example has a few such agreements, include with Denmark AFAICT: * https://www.canada.ca/en/revenue-agency/services/tax/canada-pension-plan-cpp-employment-insurance-ei-rulings/cpp-ei-explained/canada-pension-plan-employment-insurance-explained-13.html https://www.canada.ca/en/revenue-agency/services/tax/canada-... * https://retirehappy.ca/social-security-agreements-cpp-oas/ https://retirehappy.ca/social-security-agreements-cpp-oas/