Syria, US-led coalition hunt IS sleeper cells after deadly US troop attack

• Syria and a US-led coalition launched an operation against IS sleeper cells following a deadly attack on US troops.
• Two US troops and a civilian interpreter were killed in central Syria's Palmyra region by an IS militant.
• Three individuals have been arrested in connection with the attack, and 11 Syrian security force members are being questioned.
• The incident marks the first of its kind since Syria's new leadership and rekindled ties with the US.
• Syrian President expressed condolences, and the US vowed "very serious retaliation" against IS.

Why It Matters: Renewed US-Syria anti-IS efforts follow deadly attack, showing persistent threat.