The London Conference on International Law was held over two days on 10 and 11 October in London. It brought together international law practitioners, academics, judges, representatives of government and civil society and others from around the world. The theme of this year’s conference was “States in Emergency – International Law at a Time of Reckoning“. Four plenaries and 12 panel sessions covered an array of topics, including climate emergency, investor-state dispute settlement, human rights, international criminal justice, security, cyber warfare, jurisdiction at sea, sanctions and ethical challenges for practitioners.