Since terrorists will hide among women and children, it would be necessary to kill ten of thousands of women and children.
I don't see America today, willing to do that.
WWII was ended in part by bombing Hamburg, Dresden, Berlin, Tokyo, Hiroshima and Nagasaki.
We won and it stayed won. They were and remained very compliant during our long occupations.
To get to compliant unconditional surrender, we had the will to do what was necessary.
No more.