If you have worked in one or more EU countries, each country, where you have been insured for at least a year, pays you an old-age pension when you reach the pensionable age. If the period during which you have been insured in an EU country, Iceland, Liechtenstein, Norway or Switzerland is not long enough to qualify for a pension there, periods of insurance or residence that you completed in other countries will be taken into account. The amount of the pension depends on the time worked in a country and country legislation.
Your pension will be paid regardless of where you stay or reside within Europe. For coordination with countries outside EU some bilateral agreements are in place. Documents confirming your service record should be submitted to the social insurance board or other responsible authority in your country of residence.