admission of microstates (San Marino, Liechtenstein, Monaco, Andorra) in 1990s
admission of South Sudan (not applicable before 1993)
admission of new states after breakup of Yugoslavia (1992)
admission of East and West Germany (1973)
admission of Namibia (1990)
admission of People's Republic of China (1971)
dissolution of USSR and admission of successor states (1991-1992)
foster social and economic development
maintain international peace and security
promote human rights
provide humanitarian aid
uphold international law