It is a highly specialized subfield which examines issues related to service personnel as a distinct group with coerced collective action based on shared interests linked to survival in vocation and combat, with purposes and values that are more defined and narrow than within civil society.. 
Somali is the best Docugbìmọ̀ of the cusd languages, with academic studies beginning before 1900.Ìtọ́kasí àwọn èdè.. 