nsacpi
Expects Yuge Games
As do I. I point you to the Marshall Plan and other foreign aid handed out after WWII along with other coordinated attempts to make allies out of former enemies.
I point you to Germany after WWI as a data point to. Draconian punishment led to resentment that festered.
I agree that the Marshall plan and other forms of assistance were important. But so was the docility of the German and Japanese populations after World War II. The magnitude of the psychological impact of the devastation suffered by them was very important in turning them in a new direction. You can only understand the change in thinking by reading memoirs (and interestingly enough works of fiction) of the people who went through the last phases of World War II in Germany and Japan.