In a list of ‘desk side reminders’, allegedly originating with General Colin Powell, there is one towards the end which says ‘the window for changes is the first year’. It is unlikely President Obama follows these reminders, but it is nonetheless worthwhile to consider how his decisions – the decisions of the Commander in Chief of the sole remaining military superpower – impacted the application and development of international humanitarian law during the year when his window of opportunity was open.

President Obama's first year in office can be defined by two words: pragmatism and commitment. His pragmatism is reflected in the decision to continue to pursue the armed conflicts against transnational terrorism, and his refusal to abandon the legal and policy positions of his predecessor that lodge that struggle squarely within an armed conflict paradigm. His commitment is reflected both in his decision to continue the armed struggle against transnational terrorism, and in the actions he has taken to demonstrate US commitment to fundamental humanitarian principles of the law, and to abandon the policy of legal exceptionalism that defined his predecessor's ‘authority without obligation’ interpretation of the law as it applied to this armed conflict. Any doubt about these dual pillars of his approach to transnational terrorism was eliminated when he delivered his Nobel acceptance speech. In that speech, he challenged the international community to accept the continuing need to meet the threat of transnational terrorism with military force. However, he also emphasized that maintaining the moral high ground in the conduct of hostilities – even when confronting an immoral opponent – is at the very core of the American military tradition.