It's wrong because many of us wouldn't even be here if that had been the approach in 1939.
And it's also wrong because there *are* certain circumstances in which military action is legitimate. Not many - but there are certainly some.
Daesh aren't people we could talk to or play nice with. Daesh needed to be destroyed for the good of humanity.
Nor was I in any way OK with the 43 MPs who apparently preferred to abandon the Kurds, the Yazidis, the Iraqi people and their sovereign government.
Opponents of action rightly highlighted that unlike in Iraq, the Syrian government hadn't asked for our help.
And they highlighted the quite mindboggling chaos in Syria: so many different sides engaged in a war of annihilation. A perfectly principled position
It was a quite devilishly difficult decision. Great, thoughtful speeches were made across the House.
Acting in Syria in 2013 against Assad would've done that again, with bells on.
NOT acting in Iraq in 2014 and, arguably, in Syria in 2015 against Daesh would've also done that. Catastrophically.
Yet we remain vital to NATO - and in Europe. it's us and France as nuclear powers who protect the whole continent, under American aegis.
That's why Tory cuts to the police, fire services and the NHS are outrageous. But it's also why a policy of no war in any circumstances whatsoever is just flat out wrong.