Here's just one example of what it was like.
Walking up to the infamous Swimming Pool Hill with an SAS officer gave an imposing view of the capital city. But getting to the pool itself, and the cruelty it personified, sent a shudder up the spine.
The pool had been built by the last invaders, the Russians, to attract international competition. It was never used for that purpose. Under the Taliban, a trip to the pool meant certain death.
Disbelievers, or those who'd offended against Sharia law, who wouldn't have even attracted a penalty in this country, were lined up against the blue swimming pool wall and shot. Worse still, some were made climb the steps to the highest of the five diving boards and marched off the end, falling to their death on the concrete below.
Why wouldn't they make a run for it, or at least put up a fight? the SAS man was asked. He shrugged his shoulders and said that part of the human condition is a belief that it'll never actually happen, until it unfortunately does.
And to an extent that's probably the view of most who serve overseas.
So has our participation in Afghanistan been worth it? The question's too subjective to objectively answer but at least the Taliban's no longer in control. If they did return it'd be the equivalent to the Nazis again being in control of Germany and the answer would then very definitely be NO.
Barry Soper is the Political Editor for Newstalk ZB