Let's say the error goes the other way. Criminal actors within the US illegally launch a strike and destroy Rostov-on-Don. The US agrees to hand over the culprits for Russian trial and pay reparations. The Russians decline and destroy Miami instead.
Of course not. Now in addition to putting the criminals responsible on trial for the murder of the residents of Rostov-on-the-Don, I'm going to add charges for the murder of the residents of Miami. Might even invite Russian prosecutors over to get in on the trial? Who knows?
In any case, once the criminals are executed, the matter will be settled.
Matter settled?