Because they give off some lands to other countries and change their country named to USSR.
1. A native or naturalized person who owes allegiance to a government and is entitled to protection from it
2. citizenship, relationship between an individual and a state to which the individual owes allegiance and in turn is entitled to its protection.
Citizenship implies the status of freedom with accompanying responsibilities
while a Citizen is a person
He was re-elected twice
he was elected a total of 3 times