Question

Which European leader created a Five-Year Plan, based on Communist ideology, that required workers to double, or triple, production to modernize their nation?

Answer 1

Im pretty sure it was Joseph Stalin.

Answer 2

Lots of them, but indeed Joe Stalin was the first, in 1928. I don't think his goal was modernization per se, but simply getting enough food and goods for the people to survive. By the late 1920s, basic production in the USSR was a mere fraction (like less than 20%) of what it was in the 1900s, at the end of the Russian Empire.