In our tech-obsessed world, many tend to believe that military superiority is largely the product of superior military technology: The more advanced a country’s missile force, the more likely it is to prevail in a military confrontation in the 21st century. While this is certainly correct up to a point, we often tend to neglect a more mundane and less exciting component of guaranteeing a military force’s superiority over an adversary: military drills.
http://thediplomat.com/2017/08/this-is-how-europe-conquered-asia/