Robin Parmelee

Explore an overlooked moment in pre-WWI Palestine when people's identities overlapped, and Jewish, Muslim, and Christian communities intermingled freely. Few could contemplate the conflict that would engulf their region for the next century.

FRONTLINE investigates the miscalculations and mistakes behind the brutal rise of ISIS. Correspondent Martin Smith, who made "Truth, War & Consequences," "Beyond Baghdad," "Private Warriors" and "Gangs of Iraq," reports from Iraq on how the country began coming undone after the American withdrawal and what it means for the U.S. to be fighting there again.

FRONTLINE investigates the miscalculations and mistakes behind the brutal rise of ISIS. Correspondent Martin Smith, who made "Truth, War & Consequences," "Beyond Baghdad," "Private Warriors" and "Gangs of Iraq," reports from Iraq on how the country began coming undone after the American withdrawal and what it means for the U.S. to be fighting there again.