There are 149 states party to the Genocide Convention. Every one of them has the right to call out the genocide in progress in Gaza and report it to the United Nations. In the event that another state party disputes the claim of genocide – and Israel, the United States and the United Kingdom are all states party – then the International Court of Justice is required to adjudicate on “the responsibility of a State for genocide”.
These are the relevant articles of the genocide convention:
Any Contracting Party may call upon the competent organs of the United Nations to take such action under the Charter of the United Nations as they consider appropriate for the prevention and suppression of acts of genocide or any of the other acts enumerated in article III.
Disputes between the Contracting Parties relating to the interpretation, application or fulfilment of the present Convention, including those relating to the responsibility of a State for genocide or for any of the other acts enumerated in article III, shall be submitted to the International Court of Justice at the request of any of the parties to the dispute.”
Note that here “parties to the dispute” means the states disputing the facts of genocide, not the parties to the genocide/conflict. Any single state party is able to invoke the Convention.
… It is very definitely worth activating the Genocide Convention. A judgement of the International Court of Justice that Israel is guilty of genocide would have an extraordinary diplomatic effect and would cause domestic difficulties in the UK and even in the US in continuing to subsidise and arm Israel.
… It is also the fact that a reference for genocide would force the western media to address the issue and use the term, rather than just pump out propaganda about Hamas fighting bases in hospitals. Furthermore a judgement from the ICJ would automatically trigger a reference to the United Nations General Assembly – crucially not to the western-vetoed Security Council.
All this begs the question of why no state has yet invoked the Genocide Convention.