Answer: During the presidency of Ronald Reagan in the 1980s.
Explanation:
During the Cold War, the United States spent enormous sums of money for military purposes. When it comes to defensive armaments during Ronald Reagan's presidency, the money spent on defensive purposes reaches a staggering figure.
During his tenure, the United States spent over $ 2 trillion. So the united states of the wealthiest country became the most indebted. Cost climax was reached when deploying a missile defence system in Europe.
