If humanity should have learned one thing from history, what would it be?

if humanity should have learned one thing from history, what would it be?

war is futile suffering

Preemptive strike against an enemy building up to attack you works great, and you can easily rationalize it to the rest of the world and assume the moral high ground.

Traps aren't gay.

Don't trust jews and don't let blacks into your country.

but would it be preventable? i fear there are too many people stuck in the dark middle ages still

examples?

ofc they are. don't fight it. nobody gives a shit that you're gay.

what do you do if you were unfortunate enough to be born amongst blacks?
how can you avoid the jew when it is omnipresent?

...

>examples?

Rome conquered the world in a defensive war, as they say. The same can be said of the USA, although their preemptive strike is to bait or fake a strike, then retaliate against it. They are next level.

Also the Israeli-Arab war is a great example, and, even though they lost, Germany exceeded expectations with its results when it preemptively hit Russia and France in WW1.
They tried to do so in WW2 with USSR, but failed again, this time to the surprise of the world.

jet fuel, can't melt steel beams

>but would it be preventable?

maybe not, but that shouldn't stop us from trying