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An American ISIS Fighter Describes the Caliphate's Final Days — and His Own

PART 2: Children of ISIS fighters throw stones at an NBC News crew.

PART 3: Children of ISIS fighters make threatening gestures at an NBC News crew.

Remaining ISIS fighters hold steady in Syria

ISIS Fighters On U.S. Soil Under Surveillance | NBC News

Young American mom who married ISIS fighters begs to return to US

ISIS Fighters Are Escaping Prison | System Error

Confronting ISIS (full documentary) | FRONTLINE

American man inside Syrian prison says he was recruited to ISIS online

Battle for Iraq (full documentary) | Inside the 2016-17 Fight Against ISIS in Mosul | FRONTLINE

American Volunteer Fighting ISIS

Fighting ISIS: A Year On The Frontline

Why So Many Foreign Fighters Join ISIS | TIME

Officials say ISIS is running out of fighters

PART 1: NBC News visits Syria housing the families of ISIS fighters.

10,000 ISIS Fighters: The Hidden Army in the Desert | Full Documentary

Inside ISIS's Final Fight | Collapse of the Caliphate

Officials: American From New Jersey Now An ISIS Commander | NBC Nightly News

U.S. officials say ISIS leader, 10 ISIS fighters killed in raid

CNN gets rare access into prison holding suspected ISIS fighters