The Lost Boys of Sudan was the name given to a group of over 20,000 boys of the Nuer and Dinka ethnic groups. These boys were displaced or orphaned during the Second Sudanese Civil War (1987–2005) in which about 2 million were killed and others were severely affected.[1] The name "Lost Boys of Sudan" was colloquially used by aid workers in the refugee camps where the boys resided in Africa. Many believe the term was initially derived from the children's story of Peter Pan.[2] The term was revived, as children fled the post-independence violence of South Sudan with Sudan during 2011–13.[3][4]