Fourthly, we must hold accountable groups and individuals that flagrantly violate the laws of war, including those who use rape and sexual violence as a weapon of war. The primary responsibility for ensuring accountability lies with States, but the international community must be prepared to take action against those who violate international humanitarian law, including through the imposition of sanctions, such as the freezing of assets, the banning of international travel or restricting the flow of goods and arms. We must help Governments create, maintain and operate credible national courts, where possible, and support international and hybrid tribunals, when necessary, to end impunity. The International Criminal Court plays a key role in bringing perpetrators of the worst atrocities to justice.