Sleepers?

With the US army officer killing 13 fellow soldiers and an Afghan policeman shooting British soldiers, both of whom were trained or being trained by the nation they purportedly worked for, one has to ask whether these people are 'sleepers'- individuals, perhaps part of a larger organisation put in place to commit these acts of betrayal.

I don't believe an army officer killed his comrades simply because he didn't want to go to Afghanistan. There are other, less lethal ways of avoiding such deployment. Neither do I believe an individual joined a police force in good faith and was recruited while serving.

It brings into question our reason for having troops deployed in an unwinnable war. By their very nature, the guerrillas in Afghanistan will, if apparently defeated, reappear when foreign troops are withdrawn.

Or are we to be there forever?