Violence in northwestern Syria has killed dozens over the past three weeks and displaced tens of thousands, raising concerns a truce reached six months ago between Turkey and Russia is in danger.

The violence in Idlib comes as the world is focused on eastern Syria, where U.S.-backed Kurdish-led fighters are on the verge of defeating the Islamic State group in the last area they control.

Idlib has been in the hands of opposition forces for years, even as Syrian President Bashar Assad’s military retook other rebel enclaves, one after the other.

In this Oct. 11, 2015 file photo, Syrian soldiers fire repelling an attack in Achan, Hama province, Syria. (Alexander Kots/Komsomolskaya Pravda via AP, File)
In this Oct. 11, 2015 file photo, Syrian soldiers fire repelling an attack in Achan, Hama province, Syria. (Alexander Kots/Komsomolskaya Pravda via AP, File)

The province is now home to some 3 million people, many of them displaced from other former opposition territory. Earlier this year, al-Qaida-linked militants took over the province, squeezing out most other factions after clashes with Turkey-backed opposition fighters.

FILE -- In this Sept. 14, 2018 file photo, protesters attend a demonstration against the Syrian government's expected offensive to Idlib, in the northwestern town of Maarat al-Numan, south of Idlib, Syria. (Ugur Can/DHA via AP, File)
FILE — In this Sept. 14, 2018 file photo, protesters attend a demonstration against the Syrian government’s expected offensive to Idlib, in the northwestern town of Maarat al-Numan, south of Idlib, Syria. (Ugur Can/DHA via AP, File)
FILE - In this Sept. 9, 2018 file photo, fighters with the Free Syrian army exit a cave where they live, on the outskirts of the northern town of Jisr al-Shughur, west of Idlib, Syria. (Ugur Can/DHA via AP, File)
FILE – In this Sept. 9, 2018 file photo, fighters with the Free Syrian army exit a cave where they live, on the outskirts of the northern town of Jisr al-Shughur, west of Idlib, Syria. (Ugur Can/DHA via AP, File)
FILE - This undated file photo released by a militant group in 2016, shows Abu Mohammed al-Golani of the militant Levant Liberation Committee and the leader of Syria's al-Qaida affiliate, second right, discussing battlefield details with field commanders over a map, in Aleppo, Syria. (Militant UGC via AP, File)
FILE – This undated file photo released by a militant group in 2016, shows Abu Mohammed al-Golani of the militant Levant Liberation Committee and the leader of Syria’s al-Qaida affiliate, second right, discussing battlefield details with field commanders over a map, in Aleppo, Syria. (Militant UGC via AP, File)