We rebuilt Japan and Germany and they are both wealthy and peaceful now. And we still have troops there.
General MacArthur wrote the constitution for Japan himself.
To say that the USA does not do nation building is bullshit, we damn well have done nation building.
Look at Germany and Japan. We did not just destroy them and then leave them to their own device. We helped Japan and Germany to rebuild. And then we even fought to bring down the Berlin Wall. We forgave Germany and we helped to bring down the Berlin Wall.
We know how to fix Afghanistan. You lay the foundation, and you build on the foundation. And they need a peace-time economy. And they need public swimming pools, etc.
We did not just remove Hitler, and then let Germany fall back to the Nazis. We rebuilt Germany, and we still have troops there.
Salute,
Tony V.