Everyone knows U.S. Army infantry soldiers look intense—dressed in uniform and packing enough gear to take on a small nation.

The Army’s evolution of uniforms goes beyond just the colors and material. Just as weapons and vehicles modernized to meet a Soldier’s need in battle, so too did the uniforms.

During that period, Russia and China steadily expanded their territorial ambitions and modernized their militaries. The U.S. Army was largely equipped with the kinds of conventional weapons, such ...