Because the soviets had previously signed a Non-Aggression pact with Germany and didn't expect the attack from Hitler (A.K.A Germany.)
Hoped this helped!
I am not completely sure but I think it's 'agrarian'.
Saving is setting aside money you don't spend now, and you only use it for emergencies.
Investing is using some of your money with the aim of making it grow, by buying assets that might increase in value
from the famous explorer amerigo vesppucii
