What was the MOST recent conflict in which Congress officially declared war?

Question

Quizplus · Accepted Answer

World War II was the last conflict in which the United States Congress officially declared war, with declarations made against Japan, Germany, and Italy, among others, in the early 1940s. Subsequent conflicts, such as the Korean War, Vietnam War, and Iraq War, were authorized by other means, such as resolutions or military authorizations, but not formal declarations of war by Congress.

What Was the MOST Recent Conflict in Which Congress Officially