Members of the US-backed Kurdish-led so-called Syrian Democratic Forces (SDF) standing gaurd in the capital city of Hasakah Governorate in the far north-east corner of Syria, December 11, 2024. (File photo by Reuters)

The United States has reportedly threatened to reimpose the so-called Caesar sanctions on Syria over the ruling Arab regime forces` crackdown on the so-called Syrian Democratic Forces (SDF), a Kurdish-led group backed by Washington.

US Vice President J.D. Vance warned Syrian interim president Ahmed al-Sharaa against pursuing a military campaign against the SDF.

According to the Wall Street Journal on Friday, Vance told al-Sharaa in a phone call "to resolve differences with the Kurds."

US President Donald Trump signed an executive order in June to ease Washington`s sanctions against the Syrian regime.

However, according to US assessments cited by the WSJ, the Syrian regime is planning a "massive, multipronged operation" against the Kurdish-led forces, which could expand to include areas where US troops are stationed. The US is against the operation against the SDF.

Back then, White House Press Secretary Karoline Leavitt claimed Trump`s order to ease the unilateral US sanctions aimed "to promote and support the country`s path to stability and peace."

Trump`s executive order eased the US sanctions on "entities critical to Syria`s development, the operation of its government, and the rebuilding of the country`s social fabric."

Syria`s Hay`at Tahrir al-Sham (HTS) forces have been carrying out a massive crackdown against Aleppo`s Kurdish neighborhoods controlled by the SDF.

The Arab state has been the target of US sanctions since 1979.

Washington intensified the sanctions against the Arab state in 2011, after the nation found itself under siege from foreign-backed terrorist groups, including Daesh. Scaling the scope of the sanctions even further, the US had approved the Caesar Act in 2019, targeting any individual and business that participated either directly or indirectly in Syria`s reconstruction efforts.

In the meantime, insecurity has persisted across the Arab country a year after the ouster of former president Bashar al-Assad.