Final answer:
For the last 70 years, the US government has used a variety of strategies and policies to support war efforts, control the economy, and engage in foreign policy.
Step-by-step explanation:
In the last 70 years, the US government has implemented measures such as propaganda, economic management, military innovation, and the use of presidential power to initiate military actions abroad. During World War II, propaganda was employed extensively to 'sell the war' to the American public, making use of emerging media technologies like radio to communicate with citizens.
The federal government also took an active role in economic management, setting prices, and rationing goods, to ensure that the war machine could be supplied efficiently.
In subsequent decades, the government continued to expand its military presence globally, particularly in the Middle East, establishing bases and being ready to project force as needed. The significant bureaucratic growth during the 1930s and 1960s led to more extensive government regulation and the development of various social programs.
The defense budget grew substantially during wartime, allowing for extensive military R&D, which led to innovations like the atomic bomb and other advanced military technologies.
Additionally, in the post-war period, the US has often exercised a focused foreign policy output, with the president frequently instigating initial uses of military force, as seen in the enforcement of the no-fly zone over Libya in 2011. These military actions, authorized by the president and often supported by Congress, exemplify a pattern of US engagement in global conflicts.