Well maybe this judgement will be the end of HMG sending troops into totally worthless and pointless wars, against the will of the general population, which was the case in the Iraq war.
Blair was only able to send troops into Iraq because of imperfections in the current UK system of "democracy". One of those imperfections is that HMG is not ultimately held to account if it makes the wrong decision.
If you look at country's with more evolved and accountable systems of democracy than the UK - eg Switzerland - they don't get caught up in pointless wars.