What it's like at the training school where US troops learn to survive in the Arctic

Because of the dangers of the Arctic environment, coupled with the growing strategic importance of this part of the world, the US Air Force runs the Arctic Survival School out of Eielson Air Force Base in Alaska.

Each year, this five-day intensive training program, also known as Cool School, teaches over 700 servicemembers the survival skills necessary to fight back against nature and survive in the Arctic.

"Mother nature does not like you in this situation," Survival Instructor Staff Sgt. Seth Reab, tells his students in the morning freeze. "She's violent. She's harsh. Your job is to survive until help comes; her job is to find a way to take your life."