What was a major difference between the korean war and the vietnam war. a. the korean war was considered a proxy war, while the vietnam war was not. b. the korean war led to an international arms race, while the vietnam war did not. c. the korean war led to the cuban missile crisis, while the vietnam war did not. d. the korean war ended in a stalemate, while the vietnam war did not. what was a major difference between the korean war and the vietnam war. a. the korean war was considered a proxy war, while the vietnam war was not. b. the korean war led to an international arms race, while the vietnam war did not. c. the korean war led to the cuban missile crisis, while the vietnam war did not. d. the korean war ended in a stalemate, while the vietnam war did not.