Sudan-South Sudan Border and Grazing Conflict

The border between Sudan and South Sudan is not fully delimited or demarcated.  It is highly militarized by numerous armed groups.  All along the border there is confusion about which administrative levels should control grazing routes.  Joshua Craze, PhD candidate at UC Berkeley, just released a paper titled "Dividing Lines: Grazing and Conflict along the Sudan-South Sudan Border" that looks at the issue through the lens of the 2011-2012 grazing season, the first since South Sudan's independence.  Seasonal pastoralist movements through the border regions are one of the central reasons for tension between the two states.