Former Delta Force officer reveals 12 leadership lessons he learned in one of the US military's most elite forces

Dalton Fury spent more than 20 years in the US Army as a Ranger and then as a Delta Force operator.

Fury is the pseudonym he uses for his writing, since his time in Delta Force, one of the US's most secretive and elite forces, has required him to conceal his true identity.

He made one public appearance, in Hollywood-grade facial prosthetics and colored contact lenses, on "60 Minutes" in 2008 to discuss his role leading the Delta Force mission in the 2001 Battle of Tora Bora intended to eliminate Osama bin Laden, as depicted in his New York Times bestseller, "Kill Bin Laden."

Fury said he wrote the book to set the record straight and donated all profits to a veterans' organization. He has since made a career of writing novels.

Fury sent us a collection of leadership lessons he learned in Delta Force and Rangers, which we've summarized below.