Remember how in the opening sequence of Gladiator, the Romans are awaiting the return of their negotiator with the Germani
and they send him back headless on a horse
and then a huge German comes out and throws them the head of their negotiator
and then the Romans absolutely slaughter the Germani, at least in part fuelled by the fate of their negotiator
Russell Crowe’s call to “unleash hell” was justified by the violation of diplomatic immunity (though obviously it wasn’t called that then)
In the Middle Ages, heralds were inviolable. Killing a herald was a legitimate justification for all-out war.
You’ve heard the expression “don’t shoot the messenger”?
That’s where it comes from.
Even the most vicious of enemies need to keep open the possiblity of talking to each other
The British and Americans were in constant touch with the Germans in WW2
British governments were always in touch with the IRA