Define "Friendly Fire" when it was a bit-error in a logic-board that made an AI butcher our own troops...
This is inevitable, just as autonomous kill-drones are inevitable.
Still jacking-up WW3's tantrum/pogrom as hard as possible, of course..
The Great Filter is going to change the unconscious-mind nature of whatever remnant surivives this century.
( PS: the only climate-model I know-of that ISN'T contradicted by Antarctica's current heating, is a powerlaw, and it predicts between 5C & 9C heating for our current atmospheric CO2 & human-added-methane.
5+C when the methane's CO2-equivalent is ignored, between 8C & 9C when it is included.
That, too, is a Friendly Fire, incident, but planet-scope, right?
Factoring in the excess methane, only, that we're producing,
brings it up to 8.33C planetary heating, using methane's 20y CO2 equivalent. Other manufactured greenhouse-gasses are not included in that estimate.