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Treaty

North Atlantic Treaty

PartiesParties with a link have a reservation.

Party Signature RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known Entry into force Renunciation Termination
Albania 01-04-2009 (A) 01-04-2009
Belgium 04-04-1949 16-06-1949 (R) 24-08-1949
Bulgaria 29-03-2004 (A) 29-03-2004
Canada 04-04-1949 03-05-1949 (R) 24-08-1949
Croatia 01-04-2009 (A) 01-04-2009
Czech Republic 12-03-1999 (A) 12-03-1999
Denmark 04-04-1949 24-08-1949 (R) 24-08-1949
Estonia 29-03-2004 (A) 29-03-2004
Finland 04-04-2023 (A) 04-04-2023
France 04-04-1949 24-08-1949 (R) 24-08-1949
Germany 06-05-1955 (A) 06-05-1955
Greece 18-02-1952 (A) 18-02-1952
Hungary 12-03-1999 (A) 12-03-1999
Iceland 04-04-1949 01-08-1949 (R) 24-08-1949
Italy 04-04-1949 24-08-1949 (R) 24-08-1949
Latvia 29-03-2004 (A) 29-03-2004
Lithuania 29-03-2004 (A) 29-03-2004
Luxembourg 04-04-1949 27-06-1949 (R) 24-08-1949
Montenegro 05-06-2017 (A) 05-06-2017
Netherlands, the Kingdom of the 04-04-1949 12-08-1949 (R) 24-08-1949
North Macedonia 27-03-2020 (A) 27-03-2020
Norway 04-04-1949 08-07-1949 (R) 24-08-1949
Poland 12-03-1999 (A) 12-03-1999
Portugal 04-04-1949 24-08-1949 (R) 24-08-1949
Romania 29-03-2004 (A) 29-03-2004
Slovakia 29-03-2004 (A) 29-03-2004
Slovenia 29-03-2004 (A) 29-03-2004
Spain 30-05-1982 (A) 30-05-1982
Sweden 07-03-2024 (A) 07-03-2024
Türkiye 18-02-1952 (A) 18-02-1952
United Kingdom 04-04-1949 07-06-1949 (R) 24-08-1949
United States of America 04-04-1949 25-07-1949 (R) 24-08-1949
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