About French and Soviet equipment in WWII (that I do know quite well), I strongly disagree that they had "technological" advantages over German ones.
French and Soviet tanks had in fact better DESIGNS (more armor generally) and LOWER tech : guns were quite inferior in accuracy, optics were more crude, turrets were cramped, they had no radios (so the tank commander had to operate the gun AND read signals from the platoon leader
!).
Adding to that poor training and tactics they generally lost in 40-41 ... French lost their war, Russia was able to stand due to large territory, industrial base, Western help and sheer will to not give up (and a quite dictatorial government that wasn't scared by sending millions to die...).
If you want an example of losing "hi tech" country in a war, rather take Vietnam...