Western troops’ withdrawal from Afghanistan raises the inevitable question: what was that all about? Whether or not we leave a lasting legacy in the country found in South Asia, Central Asia and to some extent, Western Asia, is an open question. That no one seems to care about, overmuch. But it’s certainly true that the US Armed forces therein gained an enormous amount of operational familiarity. We now know how to fight a war. What guns to use. How to use them. When to use them. True?