2 Jun 06 Terrorism Monitor: The Role of Kinship in Indonesia's Jemaah Islamiya
...The use of sibling relationships in jihadi recruitment is to provide further ideological support for the recruits beyond the group itself. Sometimes two or more brothers are recruited for jihad, helping each other during an operation and providing each other inspiration and reassurance. This particular type of recruitment is an effective use of kinship to ensure deeper engagement with the cause and group...