Dr Christos Christou commenced his role as International President of Médecins Sans Frontières in the first week of September 2019. Before this, he held a number of roles in the field with MSF and with the Association in MSF Greece. Dr Christou joined MSF in 2002, where his first assignment was in Greece as a field doctor, working with migrants and refugees, before working as a doctor in an HIV/AIDS project in Zambia in 2004 and 2005. After a break from field missions for a number of years while he trained as a surgeon, from 2013 he joined MSF missions in a number of conflict zones and insecure contexts, including South Sudan, Iraq and, most recently, Cameroon, as an emergency and trauma surgeon.