Heads of state or government — from any country — can be held accountable for actions that undermine democracy and fundamental rights. No leaders have monopolies over the suffering of their peoples. But it is not legitimate for another state to arrogate to itself the right to deliver justice. Unilateral actions threaten stability around the world, disrupt trade and investment, increase refugee flow and further weaken the capacity of states to confront organized crime and other transnational challenges.