5. United States of America
In order to become a citizen of the United States, you need to fulfill various criteria in addition to having been a permanent resident of the country for at least 5 years.

Copyright: digidreamgrafix / 123RF Stock Photo
In order to become a citizen of the United States, you need to fulfill various criteria in addition to having been a permanent resident of the country for at least 5 years.
Copyright: digidreamgrafix / 123RF Stock Photo