Soviet Union
1917β1991 Β· 74 Years
15 republics. 280 million people at peak. Spawned the global communist movement, armed and supported communist revolutions on every continent, fought and won the Second World War at catastrophic human cost, and then spent 45 years in nuclear standoff with the West.
Deaths attributed20β62 million
Key atrocityHolodomor, Great Purge, Gulag
Final fateCollapsed economically 1991; Gorbachev's reforms accidentally ended it
People's Republic of China
1949βPresent Β· Still Ongoing
1.4 billion people. The world's largest communist state by population and the world's second-largest economy. Has evolved into authoritarian state capitalism while retaining one-party communist rule, censorship, political imprisonment, and territorial expansionism.
Deaths attributed40β80 million (Maoist era)
Key atrocityGreat Leap Forward, Cultural Revolution, Tiananmen
Final fateOngoing β party still in power
Cambodia / Khmer Rouge
1975β1979 Β· 4 Years
The most concentrated genocide in modern history relative to population size. A country of 8 million people lost 1.5β2 million in four years. Cities were emptied. Literacy was a death sentence. The calendar was reset to "Year Zero." Ended only when Vietnam invaded.
Deaths attributed1.5β2 million (25% of population)
Key atrocityYear Zero, Killing Fields, S-21
Final fateEnded by Vietnamese invasion, 1979
North Korea (DPRK)
1948βPresent Β· Still Ongoing
The most isolated country on Earth. 25 million people with no access to the outside world. Nuclear weapons program maintained at the cost of mass starvation. The ruling Kim family is worshipped as literal gods through mandatory state religion disguised as political ideology.
Deaths attributed1β3 million
Key atrocity1990s famine, political prison camps
Final fateOngoing β Kim Jong-un rules today
Cuba
1959βPresent Β· 66 Years Ongoing
Once the wealthiest country in the Caribbean with a higher GDP per capita than Spain. Today: widespread poverty, food rationing, zero political freedom, and a mass exodus that has not stopped in 65 years. The Cuban government survives by imprisoning dissidents and controlling all information.
Deaths attributed78,000β141,000
Key atrocityExecutions, forced labor camps, mass exile
Final fateOngoing β DΓaz-Canel rules today
Vietnam
1975βPresent Β· Still Ongoing
Nominally communist with an increasingly capitalist economy (Doi Moi reforms, 1986), but political repression, one-party rule, and imprisonment of dissidents continue. The Vietnamese Communist Party maintains a monopoly on power while allowing market forces that would horrify Marx.
Deaths attributed1β2 million (post-1975)
Key atrocityRe-education camps, Boat People exodus
Final fateOngoing β Vietnamese Communist Party rules today