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Treaty

Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or Other Gases, and of Bacteriological Methods of Warfare

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
Afghanistan 09-12-1986 (A) 09-12-1986
Albania 20-12-1989 (A) 20-12-1989
Algeria 27-01-1992 (A) 27-01-1992
Angola 08-11-1990 (A) 08-11-1990
Antigua and Barbuda 27-04-1988 (Su) 01-11-1981
Argentina 12-05-1969 (A) 12-05-1969
Australia 24-05-1930 (A) 24-05-1930
Austria 17-06-1925 09-05-1928 (R) 09-05-1928
Bahrain 09-12-1988 (A) 09-12-1988
Bangladesh 20-05-1989 (A) 20-05-1989
Barbados 16-07-1976 (Su) 30-11-1966
Belgium 17-06-1925 04-12-1928 (R) 04-12-1928
Benin 09-12-1986 (A) 09-12-1986
Bhutan 19-02-1979 (A) 19-02-1979
Bolivia 13-08-1985 (A) 13-08-1985
Brazil 17-06-1925 28-08-1970 (R) 28-08-1970
Bulgaria 17-06-1925 07-03-1934 (R) 07-03-1934
Burkina Faso 03-03-1971 (A) 03-03-1971
Cabo Verde 15-10-1991 (A) 15-10-1991
Cambodia 15-03-1983 (A) 15-03-1983
Cameroon 20-07-1989 (A) 20-07-1989
Canada 17-06-1925 06-05-1930 (R) 06-05-1930
Central African Republic 31-07-1970 (A) 31-07-1970
Chile 02-07-1935 (R) 02-07-1935
China 17-06-1925 24-08-1929 (A) 24-08-1929
Colombia 24-11-2015 (A) 24-11-2015
Costa Rica 17-06-2009 (A) 17-06-2009
Côte d'Ivoire 27-07-1970 (A) 27-07-1970
Croatia 18-12-2006 (A) 18-12-2006
Cuba 24-06-1966 (A) 24-06-1966
Cyprus 12-12-1966 (Su) 16-08-1960
Czech Republic 17-06-1925 16-08-1938 (R) 16-08-1938
Democratic People's Republic of Korea 04-01-1989 (A) 04-01-1989
Denmark 17-06-1925 05-05-1930 (R) 05-05-1930
Dominican Republic 08-12-1970 (A) 08-12-1970
Ecuador 16-09-1970 (A) 16-09-1970
Egypt 17-06-1925 06-12-1928 (R) 06-12-1928
El Salvador 17-06-1925 12-01-2010 (R) 12-01-2010
Equatorial Guinea 20-05-1989 (A) 20-05-1989
Estonia 17-06-1925 28-08-1931 (R) 28-08-1931
Eswatini 23-07-1991 (A) 23-07-1991
Ethiopia 17-06-1925 07-10-1935 (A) 07-10-1935
Fiji 21-03-1973 (Su) 10-10-1970
Finland 17-06-1925 26-06-1929 (R) 26-06-1929
France 17-06-1925 10-05-1926 (R) 10-05-1926
Gambia, The 05-11-1966 (Su) 18-02-1965
Germany 17-06-1925 25-04-1929 (R) 25-04-1929
Ghana 03-05-1967 (A) 03-05-1967
Greece 17-06-1925 30-05-1931 (R) 30-05-1931
Grenada 03-01-1989 (Su) 07-02-1974
Guatemala 03-05-1983 (A) 03-05-1983
Guinea 11-12-1980 (Su) 02-09-1980
Guinea-Bissau 20-05-1989 (A) 20-05-1989
Holy See 18-10-1966 (A) 18-10-1966
Honduras 18-06-2025 (A) 31-07-2025
Hungary 11-10-1952 (A) 11-10-1952
Iceland 02-11-1967 (A) 02-11-1967
India 17-06-1925 09-04-1930 (R) 09-04-1930
Indonesia 21-01-1971 (Su) 27-12-1949
Iran 05-11-1929 (A) 05-11-1929
Iraq 08-09-1931 (A) 08-09-1931
Ireland 29-08-1930 (A) 29-08-1930
Israel 20-02-1969 (A) 20-02-1969
Italy 17-06-1925 03-04-1928 (R) 03-04-1928
Jamaica 28-07-1970 (Su) 06-08-1962
Japan 17-06-1925 21-05-1970 (R) 21-05-1970
Jordan 20-01-1977 (A) 20-01-1977
Kazakhstan 20-04-2020 (A) 20-04-2020
Kenya 06-07-1970 (A) 06-07-1970
Kuwait 15-12-1971 (A) 15-12-1971
Kyrgyzstan 29-06-2020 (A) 29-06-2020
Laos 20-05-1989 (A) 20-05-1989
Latvia 17-06-1925 03-06-1931 (R) 03-06-1931
Lebanon 17-04-1969 (A) 17-04-1969
Lesotho 10-03-1972 (Su) 04-10-1966
Liberia 17-06-1927 (A) 17-06-1927
Libya 29-12-1971 (A) 29-12-1971
Liechtenstein 06-09-1991 (A) 06-09-1991
Lithuania 17-06-1925 15-06-1933 (R) 15-06-1933
Luxembourg 17-06-1925 01-09-1936 (R) 01-09-1936
Madagascar 02-08-1967 (A) 02-08-1967
Malawi 14-09-1970 (A) 14-09-1970
Malaysia 10-12-1970 (A) 10-12-1970
Maldives 27-12-1966 (A) 27-12-1966
Malta 21-09-1964 (Su) 21-09-1964
Mauritius 12-03-1968 (Su) 12-03-1968
Mexico 28-05-1932 (A) 28-05-1932
Moldova 31-01-2011 (A) 31-01-2011
Monaco 06-01-1967 (A) 06-01-1967
Mongolia 06-12-1968 (A) 06-12-1968
Morocco 13-10-1970 (A) 13-10-1970
Nepal 09-05-1969 (A) 09-05-1969
Netherlands, the Kingdom of the 17-06-1925 31-10-1930 (R) 31-10-1930
New Zealand 24-05-1930 (A) 24-05-1930
Nicaragua 17-06-1925 05-10-1990 (R) 05-10-1990
Niger 05-04-1967 (Su) 03-08-1960
Nigeria 15-10-1968 (A) 15-10-1968
North Macedonia 20-08-2015 (A) 20-08-2015
Norway 17-06-1925 27-07-1932 (R) 27-07-1932
Pakistan 15-04-1960 (Su) 15-08-1947
Palestine 19-01-2018 (A) 19-01-2018
Panama 04-12-1970 (A) 04-12-1970
Papua New Guinea 11-12-1980 (Su) 16-09-1975
Paraguay 22-10-1933 (A) 22-10-1933
Peru 13-08-1985 (A) 13-08-1985
Philippines 08-06-1973 (A) 08-06-1973
Poland 17-06-1925 04-02-1929 (R) 04-02-1929
Portugal 17-06-1925 01-07-1930 (R) 01-07-1930
Qatar 18-10-1976 (A) 18-10-1976
Republic of Korea, the 04-01-1989 (A) 04-01-1989
Romania 17-06-1925 23-08-1929 (R) 23-08-1929
Russian Federation 05-04-1928 (A) 05-04-1928
Rwanda 11-05-1964 (Su) 01-07-1962
Saint Kitts and Nevis 27-04-1989 (Su) 19-09-1983
Saint Lucia 21-12-1988 (Su) 22-02-1979
Saint Vincent and the Grenadines 08-05-1999 (Su) 09-04-1930
Saudi Arabia 27-01-1971 (A) 27-01-1971
Senegal 15-06-1977 (A) 15-06-1977
Sierra Leone 20-03-1967 (A) 20-03-1967
Slovakia 17-06-1925 16-08-1938 (R) 16-08-1938
Slovenia 08-04-2008 (A) 08-04-2008
Solomon Islands 01-06-1981 (Su) 01-06-1981
South Africa 24-05-1930 (A) 24-05-1930
Spain 17-06-1925 22-08-1929 (R) 22-08-1929
Sri Lanka 20-01-1954 (A) 20-01-1954
Sudan 17-12-1980 (A) 17-12-1980
Sweden 17-06-1925 25-04-1930 (R) 25-04-1930
Switzerland 17-06-1925 12-07-1932 (R) 12-07-1932
Syria 17-12-1968 (A) 17-12-1968
Tajikistan 15-11-2019 (A) 15-11-2019
Tanzania 22-04-1963 (A) 22-04-1963
Thailand 17-06-1925 06-06-1931 (R) 06-06-1931
Togo 05-04-1971 (A) 05-04-1971
Tonga 19-07-1971 (Su) 04-06-1970
Trinidad and Tobago 31-08-1962 (Su) 24-11-1970
Tunisia 12-07-1967 (A) 12-07-1967
Türkiye 17-06-1925 05-10-1929 (R) 05-10-1929
Uganda 24-05-1965 (A) 24-05-1965
Ukraine 15-07-2003 (Su) 15-07-2003
United Kingdom 17-06-1925 09-04-1930 (R) 09-04-1930
United States of America 10-04-1975 10-04-1975 (R) 10-04-1975
Uruguay 17-06-1925 12-04-1977 (R) 12-04-1977
Uzbekistan 13-04-2021 (A) 13-04-2021
Venezuela 17-06-1925 08-02-1928 (R) 08-02-1928
Vietnam 15-12-1980 (A) 15-12-1980
Yemen 17-03-1971 (A) 17-03-1971
Yugoslavia (< 25-06-1991) 17-06-1925 12-04-1929 (R) 12-04-1929
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