In my blog posting of 16 January entitled ‘Palestine: From a “will-be” party to the CWC to a “would-have-been”?’, I described how Palestine submitted its instrument of accession to the Chemical Weapons Convention (CWC) with the UN Secretary-General on 29 December, only to withdraw it on 8 January. Since having achieved the status of ‘UN non-member observer state’ in 2012, Palestine has joined over 50 international agreements, including the Biological and Toxin Weapons Convention, to which it became formally a party on 16 January. The CWC is the only treaty on which it reversed its position.
Something really remarkable happened in the first two weeks of 2018. On 2 January, quite out of the blue came the notification by UN Secretary-General António Guterres that the State of Palestine had deposited its instrument of accession to the Chemical Weapons Convention (CWC). It was to become the 193rd state party on 28 January, thirty days after having submitted the document (29 December). Indeed, ‘was’. Guterres formally informed UN members on 11 January that Palestine had withdrawn its instrument of accession three days earlier.
The Organisation for the Prohibition of Chemical Weapons (OPCW) has just announced the accession of Angola to the Chemical Weapons Convention (CWC). The country deposited its instrument of accession with the UN Secretary-General on 16 September, which means that it will become a party to the CWC 30 days later, that is, 16 October.
Angola will thus be the 192nd state to join the OPCW. No other treaty limiting possession or use of a particular type of weaponry can boast that many parties. The Non-Proliferation Treaty (NPT) has 191; the Biological and Toxin Weapons Convention (BTWC) 173.