What if, just for one day, guns in wars zones across the world fell silent? That is the goal of Peace Day; every year on 21st September, people come together all round the world to build a culture of peace and demand that all armed parties observe a 24-hour ceasefire. This year there is added urgency, 2020 has been a year like no other and we desperately need an end to conflict so that we can focus on our common enemy of the pandemic.