Watch the water:
Nubian Sandstone Aquifer System
"In a nutshell, whoever controls NSAS, controls the economies, foreign policies and destinies of several countries in the region, not just north-eastern Africa," explains Saeedi.
http://allafrica.com/stories/201712080687.html
http://www.eurasiareview.com/14052016-the-libyan-failure-obama-and-clintons-forgotten-war-analysis/
https://m.phys.org/news/2017-04-humans-threaten-crucial-fossil-groundwater.html
https://www.theguardian.com/environment/2011/may/27/libya-water-hidden-weapon