If they were more prudent in foreign policies NS Germany and Fascist Italy might still exist today.
again, the keyword is highlighted.
both of the states you mentioned are totalitarian.
totalitarian states rely on propaganda and absolutes for stability.
doubting a totalitarian state's future makes it unstable.
If a totalitarian state becomes unstable, it *will* fall.
TL;DR - both of those states would fall even if they were perfect on foreign policies, even you are doubting their future.
Edited 2/26/2017 20:48:11