NATGEO TV

Authenticating with
provider

Sign Out

Are you sure you want to Sign Out of your provider account?

Unlock full episodes using your participating TV provider subscription.

ActivateLearn More

You are signed in with your provider account and can watch any available full episodes.

Sign Out from providerLearn More

Check local listings

Part 1, ‘By, With and Through’

Chain of Command begins with a look at the efforts of U.S. and Iraqi forces to regain control of eastern Mosul — the front lines of the war on extremism.

Full Episodes

View all

Video Clips

View All