The fact is we should have intervened in Armenia and Georgia. We should have intervened in Syria, at least to some extent. We should have imposed crushing sanctions on Russia after the annexation of Crimea in 2014. The fact that we did not is a causal direct line to this invasion.

Since the gulf war the west has become averse to foreign adventurism. I understand that and why, but it's misconceived. Washing our hands of the rest of the world and letting countries like Iran and Russia (and Iraq under Saddam Hussein) do whatever they like doesn't work. It comes back to bite us every single time.

Even if we say it's not our problem, it's not our responsibility, it always comes back and hurts us and our direct economic, political and humanitarian interests again and again. It leads to things like the rape of Kuwait and 9/11.

Being fully engaged internationally is expensive in money and lives, it's messy, it's morally compromising. It's also unavoidable. We are part of the world and can't deny responsibility for playing our part in it. Or rather we can, but at a heavy price to ourselves and others.