Training a military force is a proposition unlike the one faced by other civil organisations: It has to prepare people to perform in the chaos and turmoil of battle – even simple tasks like making deliveries or baking bread become very different in the face of artillery fire or roadside bombs. It’s not just about mental pressure and physical discomfort, it is about facing death while doing the mundane and business-as-usual tasks. It is, perhaps, the greatest test of humans and has always been so. As military training has evolved (along with the force it enables), so have the opportunities...