Control of Urban Terrain in Syria: May 20, 2015
May 20, 2015 - Institute for the Study of War![](https://understandingwar.org/sites/default/files/styles/thumb-wide/public/Syria%20DOT%20Control%20Map%2020%20MAY%202015%20hi%20res-01_0.png?itok=7YXEo7BF)
ISIS seized the regime-held town of al-Sukna west of Deir ez-Zour City on May 14, severing the regime’s ground line of communication from Palmyra in the central Homs Desert to Deir ez-Zour City and effectively isolating remaining regime positions in western Deir ez-Zour.