The Valletta Summit on Migration was held to discuss the migration of hostile agents from what militant group?
Valletta Summit on Migration: The Valletta Summit on Migration, also called the Valletta Conference on Migration, was a summit held in Valletta, Malta, on 11–12 November 2015, in which European and African leaders discussed the European migrant crisis. European migrant crisis:  These people included asylum seekers, but also others, such as economic migrants and some hostile agents, including Islamic State militants disguised as refugees or migrants.
i don't know