Written from the sidelines by an acknowledged left wing conspiracy theorist whose experience of war and all its shitty consequences is clearly limited to guesstimates of what might have occurred and all with the benefit of 20/20 hindsight ... and the dumb MSM fell for it hook, line and sinker.
Bad things happen in combat, especially in insurgent combat, where it is virtually impossible to differentiate between combatant soldiers and civilians where civilians are used either wittingly or unwittingly as human shields and propaganda tools. They all wear the same 'non uniform'. The International Committee of the Red Cross has published an analysis of the ramifications of this here. To say that the situation is confusing is an understatement.
The fog of war is real. Seldom will you have the benefit of 100% reliable complete information. You go with what you've got and civilians, especially in insurgent warfare, get caught up in it with their 'hurt' sometimes exacerbated by the lure of 'blood money' on offer by a western military trying to atone for genuine mistakes.
What I do find as incredible the accusation that the operation in question was 'authorised' by the PM.
You commit troops to combat. You sign-off on the rules of engagement (perhaps). But you leave the conduct of operations in the hands of your military professionals. If the government was advised of an intending operation then it would only be as a matter of courtesy ... but then Hager clearly prefers the conspiracy theory route. Fits.
My analysis ... this book will flop because it deserves to.