A nun reflects during a solemn moment of the proceedings as Pope Francis leads a Holy Mass for the Martyrs of Uganda at the area of the Catholic Sanctuary in the Namugongo area of Kampala, Uganda Saturday, Nov. 28, 2015. Pope Francis is in Uganda on his first-ever trip to Africa, a six-day pilgrimage that has already taken him to Kenya and then onwards to the Central African Republic. (AP Photo/Ben Curtis), APTOPIX