"It was easy for him to discover that...in the prosecution of foreign wars, the undertaking became every day more difficult, the event more doubtful, and the possession more precarious and less beneficial". That is Edward Gibbon, writing of the Emperor Augustus. Nothing changes much, does it ?
We had no more business being in Iraq or in Afghanistan, than we had for being in Vietnam, a presence we were spared. That is not anti-warmongering but practical sense. We do not need an army for such adventures, which singularly resemble what Augustus avoided over 2,000 years ago. If it is cut back to what is needed for the defence of British territory, it will be large enough.