evidence: In 2017, the Lebanese security forces sought to impede Sunni foreign terrorist fighter flow to and from Syria and Iraq via border security and counterterrorism operations, including increased security measures at airports, border crossings, and ports to prevent the flow of ISIS and al‑Nusrah Front (ANF) fighters to Syria and Iraq. In August, the Lebanese government was involved in an arrangement that led to the departure of 4,800 al-Qa’ida-affiliated Syrian fighters from Aarsal, Lebanon to Idlib, Syria, and 670 ISIS fighters from Raas Baalbek, Lebanon into Syria. Lebanese President Michael Aoun declared "victory over terrorism" following an August 2017 LAF campaign to expel ISIS militants along the Lebanese-Syrian border near Aarsal. It was the LAF’s largest and most successful military operation in over a decade. Lebanon is a member of the Global Coalition to Defeat ISIS, and participates in all four of the Coalition’s civilian working groups. [...] In addition to the major military victory in August to clear ISIS militants from the Syrian‑Lebanese border, the Lebanese security services disrupted multiple terrorist networks and made several high profile arrests in 2017. On April 22, the LAF killed an ISIS leader and detained 10 other suspected militants in Aarsal. On November 15, the army arrested Mustafa al‑Hujeiri, a senior Sunni extremist figure and cleric involved in the 2014 kidnapping of 30 Lebanese soldiers and policemen.