The Soviet Union's downfall was not due to any single factor or leader but resulted from sustained U.S. strategic pressure, economic stagnation, and systemic flaws in central planning. American initiatives—from submarine superiority to the Helsinki Accords—undermined Soviet security and emboldened dissent. Falling oil prices in the 1980s exposed an already failing economy, while Gorbachev’s reforms prioritized political openness over market mechanisms, worsening shortages and eroding state control. Ethnic unrest and movements like Poland’s Solidarity weakened the Eastern Bloc, and German reunification within NATO reshaped Europe despite initial resistance. The Gulf War highlighted late-stage cooperation between former rivals, yet Bush’s diplomatic success went unrewarded politically. Ultimately, the USSR collapsed under its own inefficiencies, lacking the institutional frameworks needed for transition, while earlier resource booms had only delayed the inevitable.