1) A state can be held responsible under international law if its organs commit wrongful acts that violate customary international law or treaty obligations.
2) For a state to be responsible, the wrongful conduct must be attributable to the state, such as actions committed by state organs in their official capacity, and constitute a breach of an international legal obligation.
3) Defenses against state responsibility include consent, self-defense, countermeasures, force majeure, and necessity. However, the conduct must still conform to the state's international obligations.