Iraq:
3 October 1932 (from League of Nations mandate under British
administration)
Ireland:
6 December 1921 (from UK by treaty)
Israel:
14 May 1948 (from League of Nations mandate under British
administration)
Italy:
17 March 1861 (Kingdom of Italy proclaimed; Italy was not
finally unified until 1870)
Jamaica:
6 August 1962 (from UK)
Japan:
660 BC (traditional founding by Emperor Jimmu)
Jersey:
none (British crown dependency)
Jordan:
25 May 1946 (from League of Nations mandate under British
administration)
Kazakhstan:
16 December 1991 (from the Soviet Union)
Kenya:
12 December 1963 (from UK)