As from You Tube the original courtesy Iranian PressTV.
I recommend highly and without qualification and also without hardly any commentary. Go watch.
"Top 15 countries in the world by military spending per year from 1914 to 2018"
Spending as measured in American dollars [$].
Those years the Soviet Union spending more on the military than the USA during a period when the Soviet economy only one-tenth [1/10] as large as the United States. A huge and stupendous burden than could never be sustained.