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Control of Urban Terrain in Syria: May 22, 2015
May 22, 2015 - Institute for t...
![](https://understandingwar.org/sites/default/files/styles/square_thumbnail/public/Syria%20DOT%20Control%20Map%2022%20MAY%202015_high.png?itok=9ISdt2Ys)
ISIS seized the last regime-controlled border crossing between Syria and Iraq with the capture of the al-Tanf crossing on May 22 following a regime withdrawal.