Lol. The US is far from that powerful. You don't win wars by annihilation, you win wars by achieving political goals. The US wasn't able to reach these goals in

Lol. The US is far from that powerful. You don't win wars by annihilation, you win wars by achieving political goals. The US wasn't able to reach these goals in no small part because of too much collateral damage. If you want to know what a more sucessful campaign in Afghanistan looked like, the USSR invaded Afghanistan and their allied regime lasted over a year until Yeltsin caused the to fall and gave Afghanistan to the Taliban by imposing sanctions. You'll note that it's not increased brutality that was successful. It was having actually effective allies on the ground that made and broke the Soviet campaign. What's more, the campaign of shock in the initial stages of invasion was brutal, and did a lot of collateral damage, and didn't work and actually was counterproductive. It was only when the Soviets and their allies managed to actually get a competent and motivated Afghan military towards the later stages of the war that the war started turning in their favour. The US was never able to achieve their political goals and the US-backed government was never competent and motivated even after twenty years. It was a failure of the US military to achieve its goals. No amount of additional collateral damage would have done anything, it was simply a failure. In fact, less morals would have made things worse. Also, see Iraq which was even more brutal and still completely unsuccessful with Iraq veering under Iranian control.