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Convention on the Prohibition of Military or any other Hostile Use of Environmental Modification Techniques (May 18, 1977)

Countries/Territories Entry into force Ratification * Simple signature Reservation
Afghanistan Oct 22, 1985 Oct 22, 1985 [2] - -
Algeria Dec 19, 1991 Dec 19, 1991 [2] - -
Antigua and Barbuda Oct 25, 1988 Oct 25, 1988 [4] - -
Argentina Mar 20, 1987 Mar 20, 1987 [2] - -
Armenia May 15, 2002 May 15, 2002 [2] - -
Australia Sep 7, 1984 Sep 7, 1984 [1] May 31, 1978 -
Austria Jan 17, 1990 Jan 17, 1990 [2] - Jan 17, 1990
Belgium Jul 12, 1982 Jul 12, 1982 [1] May 18, 1977 -
Benin Jun 30, 1986 Jun 30, 1986 [1] Jun 10, 1977 -
Bangladesh Oct 3, 1979 Oct 3, 1979 [2] - -
Belarus Oct 5, 1978 Jun 7, 1978 [1] May 18, 1977 -
Bolivia (Plurinational State of) - - May 18, 1977 -
Brazil Oct 12, 1984 Oct 12, 1984 [1] Nov 9, 1977 -
Bulgaria Oct 5, 1978 May 31, 1978 [1] May 18, 1977 -
Canada Jun 11, 1981 Jun 11, 1981 [1] May 18, 1977 -
Chile Apr 26, 1994 Apr 26, 1994 [2] - -
China Jun 8, 2005 Jun 8, 2005 [2] - -
Congo, Dem. Rep. of - - Feb 28, 1978 -
Costa Rica Feb 7, 1996 Feb 7, 1996 [2] - -
Cuba Oct 5, 1978 Apr 10, 1978 [1] Sep 23, 1977 -
Cyprus Oct 3, 1979 Oct 3, 1979 [2] - -
Czech Republic Oct 5, 1978 Apr 12, 1978 [1] Oct 7, 1977 -
Denmark Feb 22, 1993 Feb 22, 1993 [4] - -
Dominica Oct 5, 1978 Apr 19, 1978 [1] May 18, 1977 -
Egypt Nov 9, 1992 Nov 9, 1992 [4] - -
Ethiopia Apr 1, 1982 Apr 1, 1982 [2] - -
Finland - - May 18, 1977 -
United Kingdom Oct 5, 1978 May 12, 1978 [1] May 18, 1977 -
Germany Oct 5, 1978 May 16, 1978 [1] May 18, 1977 -
Ghana May 24, 1983 May 24, 1983 [1] May 18, 1977 -
Greece Oct 5, 1978 Jun 22, 1978 [1] Mar 21, 1978 -
Guatemala Aug 23, 1983 Aug 23, 1983 [2] - -
Holy See Mar 21, 1988 Mar 21, 1988 [2] - Mar 21, 1988
Hungary - - May 27, 1977 -
Iceland Oct 5, 1978 Apr 19, 1978 [1] May 18, 1977 -
India - - May 18, 1977 -
Iran, Islamic Republic of Dec 15, 1978 Dec 15, 1978 [1] Dec 15, 1977 -
Ireland - - May 18, 1977 -
Iraq Dec 16, 1982 Dec 16, 1982 [1] May 18, 1977 -
Italy - - Aug 15, 1977 -
Japan Nov 27, 1981 Nov 27, 1981 [1] May 18, 1977 -
Kazakhstan Jun 9, 1982 Jun 9, 1982 [2] - -
Korea, Republic of Apr 25, 2005 Apr 25, 2005 [2] - -
Kuwait Dec 2, 1986 Dec 2, 1986 [2] - -
Lao, People's Dem. Rep. Jan 2, 1980 Jan 2, 1980 [2] - Jan 2, 1980
Liberia Oct 5, 1978 Oct 5, 1978 [1] Apr 13, 1978 -
Lebanon - - May 18, 1977 -
Lithuania - - May 18, 1977 -
Luxembourg Apr 16, 2002 Apr 16, 2002 [2] - -
Mauritius - - May 18, 1977 -
Malawi Dec 9, 1992 Dec 9, 1992 [2] - -
Mongolia Oct 5, 1978 Oct 5, 1978 [2] - -
Morocco Oct 5, 1978 May 19, 1978 [1] May 18, 1977 -
Niger - - May 18, 1977 -
Netherlands Feb 17, 1993 Feb 17, 1993 [2] - -
Nicaragua Apr 15, 1983 Apr 15, 1983 [1] May 18, 1977 -
Norway Sep 6, 2007 Sep 6, 2007 [1] Aug 11, 1977 -
New Zealand Feb 15, 1979 Feb 15, 1979 [1] May 18, 1977 -
Pakistan Sep 7, 1984 Sep 7, 1984 [2] - -
Panama Feb 27, 1986 Feb 27, 1986 [2] - -
Papua New Guinea May 13, 2003 May 13, 2003 [2] - -
Poland Oct 28, 1980 Oct 28, 1980 [2] - -
Portugal Oct 5, 1978 Jun 8, 1978 [1] May 18, 1977 -
Korea, Dem. People's Rep. - - May 18, 1977 -
Romania Nov 8, 1984 Nov 8, 1984 [2] - -
Russian Federation May 6, 1983 May 6, 1983 [1] May 18, 1977 -
Sierra Leone Oct 5, 1978 May 30, 1978 [1] May 18, 1977 -
Slovakia - - Apr 12, 1978 -
Slovenia May 28, 1993 May 28, 1993 [4] - -
Solomon Islands Apr 20, 2005 Apr 20, 2005 [2] - -
Spain Jun 19, 1981 Jun 19, 1981 [4] - -
Sri Lanka Oct 5, 1978 Jul 19, 1978 [1] May 18, 1977 -
Saint Lucia Oct 5, 1978 Apr 25, 1978 [1] Jun 8, 1977 -
Sao Tome and Principe May 27, 1993 May 27, 1993 [4] - -
Saint Vincent and the Grenadines Oct 5, 1979 Oct 5, 1979 [2] - -
Sweden Apr 27, 1999 Apr 27, 1999 [4] - -
Switzerland Apr 27, 1984 Apr 27, 1984 [2] - -
Syrian Arab Republic Aug 5, 1988 Aug 5, 1988 [2] - -
Tajikistan - - Aug 4, 1977 -
Tunisia Oct 12, 1999 Oct 12, 1999 [2] - -
Turkey Oct 5, 1978 May 11, 1978 [1] May 11, 1978 -
Uganda - - May 18, 1977 -
Ukraine - - May 18, 1977 -
Uruguay Oct 5, 1978 Jun 13, 1978 [1] May 18, 1977 -
United States of America Sep 16, 1993 Sep 16, 1993 [2] - -
Uzbekistan Jan 17, 1980 Jan 17, 1980 [1] May 18, 1977 -
Viet Nam May 26, 1993 May 26, 1993 [2] - -
Yemen Aug 26, 1980 Aug 26, 1980 [2] - -
Honduras Oct 5, 1978 Jul 20, 1977 [1] May 18, 1977 -
Estonia Aug 16, 2010 Aug 16, 2010 [2] - -
Cameroon Apr 14, 2011 Apr 14, 2011 [2] - -
Kyrgyzstan Apr 18, 2011 Apr 18, 2011 [2] - -
Cabo Verde Jun 15, 2015 Jun 15, 2015 [2] - -

* [1] Ratification [2] Accession/approbation [3] Acceptance/approval [4] Succession [5] Consent to be bound [6] Definite signature