The following photographs represent a small selection of our most powerful images of 2015. They crossed our desks, held our gaze and moved us during a particularly traumatic year.
Photographers, both staff and commissioned freelancers, accompanied our medical teams as they responded to death and destruction on an unprecedented scale in Syria, natural disasters in Nepal and Malawi, the refugee crisis in Europe, Ebola in West Africa, and to provide care for civilians caught up in Yemen’s war, amongst many other emergencies.