What major international conflict was occurring during the Vietnam War era?

The major international conflict occurring during the Vietnam War era was the Cold War. This prolonged period of geopolitical tension between the United States and the Soviet Union, along with their respective allies, was characterized by ideological, military, and cultural rivalry.

The Vietnam War, which took place from the late 1950s until 1975, was heavily influenced by the dynamics of the Cold War. The United States aimed to prevent the spread of communism, adhering to the domino theory, which posited that if one country fell to communism, neighboring countries would do the same. This led to U.S. involvement in Vietnam, as the South Vietnamese government fought against the communist North, supported by the Soviet Union and China.

The other options represent conflicts that either preceded or followed the Vietnam War or were not directly connected to the events in Vietnam. World War II occurred from 1939 to 1945 and was a different context regarding global alliances and enmities. The Korean War took place from 1950 to 1953, just before the Vietnam War escalated, and while it was also part of the Cold War tensions, it was a separate conflict that did not dominate the same timeline as the Vietnam War. The Persian Gulf War was significantly