The former actor and documentary maker talked of his campaign to bring global peace each year at least for one day, September 21. Since his first Peace day in 2007, some 4.5 million children have been vaccinated against polio as part of the huge humanitarian effort made possible by the truce.

Girls were fascinated by the reach of his campaign, which has attracted global support from actor Jude Law to leaders such as the Dalai Lama and UN Secretary General Ban Ki moon – so much so that even the Taliban has laid down its arms for one day.