DISARMAMENT
Convention on the prohibition of military or any other hostile use of environmental modification techniques
- Reference
- XXVI-1
- Adopted
- New York, 10 December 1976
- Entry into force
- 5 October 1978, in accordance with article IX(3).
- Registration
- 5 October 1978, No. 17119
- Signatories
- 48
- Parties
- 78
- Depositary record
- United Nations Treaty Collection
- 48 signed
- 78 ratified or acceded
- 94 participants listed
Who signed, and when
| Country | Signature | Ratification, acceptance, approval or accession |
|---|---|---|
| Afghanistan | - | 22 Oct 1985 a |
| Algeria | - | 19 Dec 1991 a |
| Antigua and Barbuda | - | 25 Oct 1988 d |
| Argentina | - | 20 Mar 1987 a |
| Armenia | - | 15 May 2002 a |
| Australia | 31 May 1978 | 7 Sep 1984 |
| Austria | - | 17 Jan 1990 a |
| Bangladesh | - | 3 Oct 1979 a |
| Belarus | 18 May 1977 | 7 Jun 1978 |
| Belgium | 18 May 1977 | 12 Jul 1982 |
| Benin | 10 Jun 1977 | 30 Jun 1986 |
| Bolivia (Plurinational State of) | 18 May 1977 | - |
| Brazil | 9 Nov 1977 | 12 Oct 1984 |
| Bulgaria | 18 May 1977 | 31 May 1978 |
| Cabo Verde | - | 3 Oct 1979 a |
| Cameroon | - | 18 Apr 2011 a |
| Canada | 18 May 1977 | 11 Jun 1981 |
| Chile | - | 26 Apr 1994 a |
| China | - | 8 Jun 2005 a |
| China 2 | - | 8 Jun 2005 a |
| Costa Rica | - | 7 Feb 1996 a |
| Cuba | 23 Sep 1977 | 10 Apr 1978 |
| Cyprus | 7 Oct 1977 | 12 Apr 1978 |
| Czech Republic | - | 22 Feb 1993 d |
| Czech Republic 3 | - | 22 Feb 1993 d |
| Democratic People's Republic of Korea | - | 8 Nov 1984 a |
| Democratic Republic of the Congo | 28 Feb 1978 | - |
| Denmark | 18 May 1977 | 19 Apr 1978 |
| Dominica | - | 9 Nov 1992 d |
| Egypt | - | 1 Apr 1982 a |
| Estonia | - | 14 Apr 2011 a |
| Ethiopia | 18 May 1977 | - |
| Finland | 18 May 1977 | 12 May 1978 |
| Germany | 18 May 1977 | 24 May 1983 |
| Germany 4 , 5 | 18 May 1977 | 24 May 1983 |
| Ghana | 21 Mar 1978 | 22 Jun 1978 |
| Greece | - | 23 Aug 1983 a |
| Guatemala | - | 21 Mar 1988 a |
| Holy See | 27 May 1977 | - |
| Honduras | - | 16 Aug 2010 a |
| Hungary | 18 May 1977 | 19 Apr 1978 |
| Iceland | 18 May 1977 | - |
| India | 15 Dec 1977 | 15 Dec 1978 |
| Iran (Islamic Republic of) | 18 May 1977 | - |
| Iraq | 15 Aug 1977 | - |
| Ireland | 18 May 1977 | 16 Dec 1982 |
| Italy | 18 May 1977 | 27 Nov 1981 |
| Japan | - | 9 Jun 1982 a |
| Kazakhstan | - | 25 Apr 2005 a |
| Kuwait | - | 2 Jan 1980 a |
| Kyrgyzstan | - | 15 Jun 2015 a |
| Lao People's Democratic Republic | 13 Apr 1978 | 5 Oct 1978 |
| Lebanon | 18 May 1977 | - |
| Liberia | 18 May 1977 | - |
| Lithuania | - | 16 Apr 2002 a |
| Luxembourg | 18 May 1977 | - |
| Malawi | - | 5 Oct 1978 a |
| Mauritius | - | 9 Dec 1992 a |
| Mongolia | 18 May 1977 | 19 May 1978 |
| Morocco | 18 May 1977 | - |
| Netherlands (Kingdom of the) | 18 May 1977 | 15 Apr 1983 |
| Netherlands (Kingdom of the) 6 | 18 May 1977 | 15 Apr 1983 |
| New Zealand | - | 7 Sep 1984 a |
| New Zealand 7 | - | 7 Sep 1984 a |
| Nicaragua | 11 Aug 1977 | 6 Sep 2007 |
| Niger | - | 17 Feb 1993 a |
| Norway | 18 May 1977 | 15 Feb 1979 |
| Pakistan | - | 27 Feb 1986 a |
| Panama | - | 13 May 2003 a |
| Papua New Guinea | - | 28 Oct 1980 a |
| Poland | 18 May 1977 | 8 Jun 1978 |
| Portugal | 18 May 1977 | - |
| Republic of Korea | - | 2 Dec 1986 a |
| Romania | 18 May 1977 | 6 May 1983 |
| Russian Federation | 18 May 1977 | 30 May 1978 |
| Sao Tome and Principe | - | 5 Oct 1979 a |
| Sierra Leone | 12 Apr 1978 | - |
| Slovakia | - | 28 May 1993 d |
| Slovakia 3 | - | 28 May 1993 d |
| Slovenia | - | 20 Apr 2005 a |
| Solomon Islands | - | 19 Jun 1981 d |
| Spain | 18 May 1977 | 19 Jul 1978 |
| Sri Lanka | 8 Jun 1977 | 25 Apr 1978 |
| St. Lucia | - | 27 May 1993 d |
| St. Vincent and the Grenadines | - | 27 Apr 1999 d |
| State of Palestine | - | 29 Dec 2017 a |
| Sweden | - | 27 Apr 1984 a |
| Switzerland | - | 5 Aug 1988 a |
| Syrian Arab Republic | 4 Aug 1977 | - |
| Tajikistan | - | 12 Oct 1999 a |
| Tunisia | 11 May 1978 | 11 May 1978 |
| Türkiye | 18 May 1977 | - |
| Uganda | 18 May 1977 | - |
| Ukraine | 18 May 1977 | 13 Jun 1978 |
| United Kingdom of Great Britain and Northern Ireland | 18 May 1977 | 16 May 1978 |
| United States of America | 18 May 1977 | 17 Jan 1980 |
| Uruguay | - | 16 Sep 1993 a |
| Uzbekistan | - | 26 May 1993 a |
| Viet Nam | - | 26 Aug 1980 a |
| Yemen | 18 May 1977 | 20 Jul 1977 |
| Yemen 8 | 18 May 1977 | 20 Jul 1977 |
Participants that are UN member states link to their profile. The Holy See, the European Union, the Cook Islands and Niue appear in these tables and are not member states, so they are named without a link rather than attached to the nearest match. The third column carries the depositary’s own annotation. Accession, succession and acceptance are legally distinct from ratification and are shown as the record states them rather than flattened into one word.
Counts verified against the depositary’s own totals for this treaty before publication. The United Nations Treaty Collection is the authority; this page is a readable copy and may lag it.