 The second important requirement is that the individual who has been wronged must maintain the nationality of the espousing state from the moment of injury until at least the presentation of the claim by way of diplomatic espousal.If the nationality of the individual in question changes in the meantime, the state of his former nationality will not be able validly to espouse his claims.The claim by a state on behalf of its national may also be dismissed or declared inadmissible if there is no effective and genuine link between the national concerned and the state that seeks to protect him (see the International Court of Justice judgment in the "Nottebohm" case).