It is an interesting, if ethically difficult, question. Actually, the US military prepared multiple counter strike options, and the president (eventually) pick

It is an interesting, if ethically difficult, question. Actually, the US military prepared multiple counter strike options, and the president (eventually) picked one. He then called off the strike a few hours before the time on target, because a faction in the Whitehouse gave him an estimate that the counterstrike would result in 150 casualties. See John Bolton's book "The Room Where It Happened" for a very elaborate inside account. He is very open that he would've preferred the strike to go through, and while he believes above casualty estimates were much too high, he was very much aware the number would not be zero. I can see how any US casualties might've tipped the balance in Trump's mind. So yes, there might be some value. But where it gets complicated is whether the value is positive or negative: One could say that the US flying only an autononous aircraft that day saved up to 151 lifes.