For decades, helicopters have faced a fundamental engineering challenge. The faster they fly, the harder they become to control. As rotor blades approach the speed of sound, aerodynamic forces begin ...

Battlefield mobility changed once armies learned that movement no longer had to follow roads, bridges, rail lines, mountain passes, or beach exits. A helicopter could lift people over terrain, land ...

War. War never changes. Except when it does. Armies across the globe frequently adopt innovative technologies to stay ahead of the curve and gain the advantage over enemies. Sometimes technologies ...