Most likely balance of power
The United States government began constructing military basa within the state in preparation for war. Although far removed from the frontlines in Europe and the Pacific, Arizona's contribution to the Allied war effort was significant. Multiple prisoner of war camps and Japanese internment camps were established across the state, as well as several new airbases and associated sites, resulting in the birth of Arizona's aviation and manufacturing industries at the end of the Depression Era. The population of the state also experienced a major increase. Many veterans returned to Arizona after the war ended, laying the foundations for the large metropolises of Pheonix and Tucson.
Well when scientists wish to learn something, they use the scientific method. The first step is to observe something/could be a problem. Then ask a question about it. Form a hypothesis, or a possible answer to that question. These are the first steps.
Further steps include setting up an experiment and results, etc, but I think you know the rest! Hope this helps!
During the war in Vietnam, the main opponents of the United States were North Vietnam and the Viet Cong, although these forces were being supported by communist states like Russia and China.
