Pitcairn Islands
none (overseas territory of the UK)

Poland
11 November 1918 (independent republic proclaimed)

Portugal
1143 (independent republic proclaimed 5 October 1910)

Puerto Rico
none (commonwealth associated with the US)

Qatar
3 September 1971 (from UK)

Reunion
none (overseas department of France)

Romania
9 May 1877 (independence proclaimed from Turkey;
independence recognized 13 July 1878 by the Treaty of Berlin;
kingdom proclaimed 26 March 1881; republic proclaimed 30 December
1947)

Russia
24 August 1991 (from Soviet Union)

Rwanda
1 July 1962 (from Belgium-administered UN trusteeship)

Saint Helena
none (overseas territory of the UK)