Curt LeMay
Exactly.
I had to search back a bit in my memory. He is the American equivalent who had the US strategic bombing campaign switch from factories and military bases (legitimate war targets) to civilian population centers in Japan . With dramatically effective and deadly results.
If I recall he found out by removing most of the defensive armaments and switching to night they could lower their altitude and increase the bomb load by something like 1/3. Since they couldn’t aim properly at night they started simply targeting the densely suburban civilian centers with small, numerous incendiary devices. Carpet fire bombing.
War is hell but I still (perhaps naively) don’t think it should target civilians.