I'd love to have avoided the war in Afghanistan, it's a horrible quagmire with no end in sight. But let's not forget the western world was perfectly happy to let the Taliban get on with whatever they wanted to get on with, right up until they conspired with an international terrorist organisation operating from their territory with their support and blessing, to murder 2,977 people in New York.

Until you can come up with a viable, demonstrably effective non-military approach to eliminating threats like that, we will continue to need a military capability. I speak as a Brit, about the wider 'we'. British troops are operating in Afghanistan right now, some of them are even Muslims. We're standing by the US, yet we have Americans here advocating undermining your own military, putting US and foreign services lives in greater danger, so they can feel a smug sense of moral superiority while sipping their skinny lattes in a nice comfortable office, just like the ones incinerated in New York in 2001.

Wars are horrible messy affairs. Innocent people suffer. It sucks. But advocating pretending threats don't exist and it's not our problem without addressing the actual issues is an utter abrogation of moral responsibility. Western militaries have gone to huge lengths to improve intelligence gathering techniques and achieve more precise targeting, massively reducing civilian casualties and blue-on-blue incidents. Surely supporting such technologies and programmes is worthwhile?