At the closest point they can reach to the Islamic State heartlands, the Kurdish Peshmerga can almost feel their enemy. Most days Isis fighters fire mortars or bullets at their frontline, 10 miles south of Sinjar, sometimes crawling through long grass for hours until they are close enough to shoot.
Several miles further south, some of Isis’s most senior leaders regularly gather in the grey concrete villages of the terror group’s northern vanguard, which for more than a decade had been the safest corners of Iraq for them to come and go. Moving among the nearby towns of Ba’ej and Billij, according to the Kurds watching from the ground, and intelligence officials keeping tabs from other vantage points, is the world’s most wanted man, Abu Bakr al-Baghdadi.
Intelligence officials, who have spent the past two years trying to pinpoint Baghdadi’s movements, are now convinced that he moves within a tight arc of north-western Iraq and north-eastern Syria, within sight of this frontline, an area in which he has remained for almost all of his time as self-anointed leader.
Read more:
http://www.theguardian.com/world/2016/may/27/inside-the-hunt-for-isis-leader-abu-bakr-al-baghdadi 
