US Army photo The Ukraine war has changed how the US Army trains its tank crews for war.

HOHENFELS, Germany — The US Army's Abrams tanks are built to charge into battle, using their heavy armor and powerful cannon to break through enemy defenses. But at a major training exercise in Germany, they were doing everything they could to stay out of sight.

Driving through the Joint Multinational Readiness Center, the Army's main overseas training facility , the presence of the 1st Armored Division's Abrams tanks was hard to miss. Mud tracks crisscrossed and meandered through the grassy hills, scarred by the treads of the heavy armored vehicles.

However, the tanks themselves were nowhere in sight.…