What was one major difference between the Korean war and the Vietnam war?

One major difference between the Korean War and the Vietnam War was the nature of international involvement. The Korean War saw significant direct military engagement from United Nations forces, primarily led by the United States, in a clear effort to repel North Korean aggression. In contrast, the Vietnam War involved a prolonged and complex conflict where the U.S. sought to prevent the spread of communism in South Vietnam, facing a guerrilla warfare strategy from the Viet Cong and heavy involvement from North Vietnam, but without the same level of international coalition. This led to different strategies, public perceptions, and outcomes in each conflict.