The use of stimulants during WWII is no secret, but in the last decade, there has been a lot of discussion and analysis of it. Just how significant was drug use in Nazi Germany, and how did the Allies compare?
Research:

Peter Kropotkin's Mutual Aid, Part 2
49:57

Peter Kropotkin's Mutual Aid, Part 1
45:03

SYMHC Classics: Haymarket Riot
37:40