For David in particular, the UN Security Council and vetos.
The UN Charter doesn't talk about vetos, instead it says (Chapter V, Article 27) that "Decisions of the Security Council . . . shall be made by an affirmative vote of nine [out of the fifteen] members including the concurring votes of the permanent members."
So if one of the five permanent members says no, the resolution falls.
To see who has done this, have a look here. Note in particular which country has been most consistently unreasonable in stopping solutions to the problems of the Middle East.
So if one of the five permanent members says no, the resolution falls.
To see who has done this, have a look here. Note in particular which country has been most consistently unreasonable in stopping solutions to the problems of the Middle East.