Brexit and the election of President Trump leave the UK unmoored from the twin anchors of its foreign policy: the EU and the US. In the ‘Leave’ imaginary, the UK will shall be free to rule the waves. To the ‘Remain’ camp, Brexit leaves the country cast adrift. What matters now is the course that is set. The UK can choose to uphold nostalgia, beholden to the mistakes of a fictitious past. Or it can seek a new role in global politics that draws on its strengths to address the major problems facing the world. This issue addresses the question of what a progressive foreign policy should look like in moral, political and practical terms.