Reference:
GB did not initiate the war in Afghanistan, it was a joint decison, taken before his time as PM, with other countries to invade (as was Iraq) and the blame has to be placed on the shoulders of all those countries jointly.
She's blaming the government for lack of equipment which would have saved him, she claims, despite his injuries had it been available. It sounds like the coroner has brought her to this conclusion. That's obviously very sad and it must eat away at her I expect.
However, most infantry soldiers I see interviewed seem to be really up for seeing some action and doing the job they're trained for. In fact, that's usually their words. They're professional soldiers and they must expect to be sent around the world waging war, or keeping the peace in a former war zone, or providing humanitarian aid, or whatever. It's hardly a secret when they sign up. And the families of those killed seem to say that they loved their job.
Arguably (and it is arguable), our armed forces are in Afghanistan protecting the security of our country as a byproduct of supporting UN resolution 1890 (2009) which is primarily intended to stablise that country. It's politics. The UK gains politically by supporting the UN and meeting its NATO obligations. We get a seat at the top table for doing so. The harsh reality is that soldiers are effectively public servants, like members of the civil service, doing whatever their political masters decree. They can hardly complain about that or pick and choose their action as it's their job.