Coalition Forces launch a mortar toward a known ISIS position as they work by, with and through the Syrian Democratic Forces in their military offensive to clear the Iraqi-Syrian border, May 13, 2018. The Coalition fired hundreds of mortar rounds wit...

A Coalition advisor hangs an 81-millimeter mortar prior to launching it at a known ISIS location near the Iraqi-Syrian border, May 13, 2018. The Coalition provided fire support and air strikes to assist the Syrian Democratic Forces as they continued ...

A Coalition member hands his teammate a 120-millimeter mortar to launch at a known ISIS location near the Iraqi-Syrian border as part of Operation Roundup, May 13, 2018. By launching hundreds of mortars at ISIS targets, Coalition Forces helped the Sy...

A Coalition member adjusts his 12-millimeter mortar tube to lock in on a known ISIS target near the Iraqi-Syrian border during Operation Roundup, May 14, 2018. The Coalition fired hundreds of mortar rounds at ISIS targets as they assisted their SDF p...

Coalition Forces launch a mortar toward a known ISIS position to assist the Syrian Democratic Forces in their military offensive to clear the Iraqi-Syrian border, May 13, 2018. The Coalition fired hundreds of mortar rounds within a few days in suppor...

Syrian Democratic Forces watch as a Coalition airstrike hits its target on a known ISIS location near the Iraqi-Syrian border, May 13, 2018. These SDF forces provided security for a Coalition mortar team and were postured to offer Quick Response Forc...

Syrian Democratic Forces pull security for Coalition Forces as they fire mortars at known ISIS locations near the Iraqi-Syrian border in support of Operation Roundup, May 13, 2018. As part of Operation Round Up, Coalition Forces support SDF troops as...

A Coalition mortar explodes on impact in an ISIS-held area before the Syrian Democratic Forces advance into the area on the Iraqi-Syrian border as part of Operation Roundup, the continued military offensive operation against ISIS in the Middle Euphra...

Coalition advisors launch a 120-millimeter mortar toward a known ISIS position to assist the Syrian Democratic Forces in their military offensive to clear the Iraqi-Syrian border as part of Operation Roundup, May 13, 2018. The Coalition fired hundred...

Coalition Forces launch a mortar toward a known ISIS position in support of the Syrian Democratic Forces in their military offensive to clear the Iraqi-Syrian border, May 14, 2018. The Coalition fired hundreds of mortar rounds at ISIS targets as part...

A Coalition member hangs an 81-millimeter mortar prior to launching it at a known ISIS location near the Iraqi-Syrian border, May 13, 2018. The Coalition provided fire support and air strikes to assist the Syrian Democratic Forces as they continued O...

A Coalition Forces member takes directions from his teammate when placing a 120-millimeter mortar tube as part of Operation Roundup, the continued military offensive to rid the country of ISIS near the Iraqi-Syrian border, May 12, 2018. The team laun...

Coalition Forces unpack their 120-millimeter mortar tube prior to digging in and launching fire missions against known ISIS locations near the Iraqi-Syrian border as part of Operation Roundup, May 12, 2018. The team closely followed the Syrian Democr...

Syrian Democratic Forces watch from a local hilltop as Coalition Forces shell known ISIS locations with mortars near the Iraqi-Syrian border as part of Operation Roundup, May 13, 2018. Coalition Forces are working by, with and through their SDF partn...