With a 68-ton armored vehicle packing a 120mm cannon, U.S. Army tankers can take the fight to the enemy in just about any environment.

Tankers consider themselves part of a brotherhood with roots in World War I. Now driving the M1 Abrams tank, these soldiers continue that legacy today. Here is a taste of what their lives are like:

(Photo: U.S. Army Sgt Sarah Dietz)

The Abrams can fire different rounds for different purposes, and tank crews have to train in a variety of environments. That means they get a lot of time on the range.

(Photo: U.S. Army Sgt. Kim Browne)

The crews are tested at 12 different levels referred to as tables. The tables demand that crews prove they can drive, fire, and coordinate together in battle in a variety of conditions.

(Photo: U.S. Army Staff Sgt. Patrick Caldwell)