A number of the original members were not sovereign when they joined the UN, and only gained full independence later: Belarus (then the Byelorussian Soviet Socialist Republic) and Ukraine (then the Ukrainian Soviet Socialist Republic) were both constituent republics of the Soviet Union, until gaining full independence in 1991.
Sejumlah anggota asli belum berdaulat saat mereka bergabung dengan PBB, dan baru meraih kemerdekaan penuh pada masa setelahnya: Belarus (saat itu Republik Sosialis Soviet Belarusia) dan Ukraina (saat itu Republik Sosialis Soviet Ukraina) sama-sama republik konstituen di Uni Soviet, sampai meraih kemerdekaan penuh pada 1991.