defence spending in the United States increased in the years immediately after World War II TRUE. As you can infer, the aftermath of the Second World War paved the way for the US to become the superpower in global politics, so also the military spending went up this relates to the other true statements:
increased during the arms race against the USSR. true One of the greatest pieces of evidence for this is the Cuban crisis of 1960, where many scholars and statesman would have foreseen the rebirth of a major international conflict resulting in another military conflict.
False:
decreased during the midst of the Korean War.
decreased as more nuclear weapons were stockpiled.