The Power to Girls campaign galvanised 500 commitments from activists, organisers and decision-makers globally to end child marriage. It showed decision-makers the urgency behind this issue and call on them to act now. We need to remove barriers to girls' freedom and agency and offer them opportunities to make choices about their bodies, lives and futures. In our campaign, we raised up girls' voices and create space for them to harness their individual power and realise their potential. We saw tangible commitments and accountability from decision-makers to ensure that ending child marriage is a political and financial priority going forward.