Assad hits a wall in Syrian war as front lines harden

FILE PHOTO: Turkish soldiers stand on a watch tower at the Atmeh crossing on the Syrian-Turkish border, as seen from the Syrian side, in Idlib governorate, Syria May 31, 2019. REUTERS/Khalil Ashawi

BEIRUT/AMMAN (Reuters) - President Bashar al-Assad's assault in the northwest has been met with a painful rebel counterpunch that underlines Turkish resolve to keep the area out of his hands and shows why he will struggle to take back more of Syria by force.

More than two months of Russian-backed operations in and around Idlib province have yielded little or nothing for Assad's side. It marks a rare case of a military campaign that has not gone his way since Russia intervened in 2015.