This is of course a very complex question that does not have a definitive answer, but 1850s would be a good decade to start counting as "Modern". This was a decade of the telegraph and Darwin's The Origin of Species.
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The answer is c.they will one day be used up
Answer: a. True
Explanation:
The purpose of the joint operations is to safeguard national interests, not only in war, but also by protective steps aimed at discouraging future opponents who are likely to challenge the vital interests of the United States or its allies.
Joint operations principles are based on the traditional values of war. Three additional principles refer to how offensive power is used by the United States Armed Forces across the continuum of military operations: discipline, perseverance, and legitimacy.
