A husband and wife prepare to deploy to Afghanistan together, leaving behind their three children. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ CHAIN OF COMMAND AIRS MONDAYS 9/8c.

About Chain of Command

Narrated by actor Chris Evans, Chain of Command and delivers extraordinary insight into the line of authority and responsibility as never seen before through an unprecedented look deep inside the war against violent extremism. From the halls of power at the Pentagon in Washington, D.C., to the front lines in Mosul, Iraq; Afghanistan; Somalia; Niger; and SouthAmerica, and to the surprising ISIS recruiting ground of Trinidad and Tobago— only 1,600 miles from the coast of Florida — viewers will see firsthand how decisions made at the Pentagon have a direct impact on our service members on the ground, fighting to protect Americans and our allies from radicalized extremists.

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About National Geographic

National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what’s possible.