Wikipedia
Passportization
This article describes modern efforts by one country, generally Russia, to induce residents of another, voluntarily or involuntarily, to take up its citizenship. For the Soviet practice of mandating citizens identity papers ( internal passports), see Propiska in the Soviet Union.
Passportization is a process by which Russian authorities have induced persons, usually holders of former Soviet passports, to apply for Russian passports. As the number of Russian passport holders in regions of adjoining nations grows, Russia then invokes its national interest in defending its citizens by promoting the independence or annexation of these regions.