An Indian writer asks what is the impact of water insecurity, choosing Pakistan as an example:http://www.thecitizen.in/NewsDetail..../as/Terrorists

I note he cites Balochistan and Kashmir as examples.

A couple of passages:
Deeper research however indicates that this is not the whole story. Geographical factors in Pakistan have greatly contributed to the degradation of agricultural land, water shortages, uneven distribution of resources, and increasing migration in search of jobs. An analysis on this security dimension was first made in 1997 by Canadian defence scientist Peter Gizewski who said that Pakistan was experiencing political instability due to geographical and climatic factors.

Based on this analysis they predicted that climatic changes in Pakistan would exacerbate present environmental conditions that give rise to shortfalls in food production, rural poverty, migration and urban unrest.
There are several thread with 'water' in the title, but no consolidated thread.