After theGreat Depression and theSecond World Warthe U.S. helped create and nurture the institutions that enabled war-torn Europe and Japan to make rapid recoveries.
Doing something effective and substantive, such as creating a modernized version of the gold-based Bretton Woods international monetary system--which lasted from the end of theSecond World War until the early 1970s and gave us an era of great, noninflationary economic growth--will not even be broached.
It was service in the German army, not the Austrian, that prepared him for his calling, to turn theGreatWar into the first world war by dint of starting a second.