from the 1940s to 1960s i think it was the strongest worldwide, being very strong in the most powerful country, it had political connections etc. i don't see another criminal group even close at that time
I think there's not enough information to even consider them the strongest ( by your definition) worldwide during the 40s to 60s. You have the Yakuza & Triads to consider and drug cartels back then as well. Now in the United States as a collective , they're are high earners of the time. Still have other US crime groups of that period making large money too.
If you think you are too small to make a difference, you haven't spend the night with a mosquito. - African Proverb
