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What I can agree is that from the beginning of mankind, warfare has not stopped despite the modernization of the human race, deep down nations still want to dominate other nations like the Roman empire. That is why there'll always be innovations in warfare, it'll continue until perhaps it brings the end of mankind, although this is not my wish.
Sure, warfare had been a constant feature of humankind,.and modernizations has done nothing to stop war, rather technology has made weapons and techniques of warfare deadlier, now governments need less money than before in order to take hundreds or thousands of people at the same time. Weapons of mass destruction.
The United States has some features in its way of functioning which could be pointed out to be similar to the Roman empire, specially of they aim to have a worldwide influence and control the interest of themselves and their allies, but the USA won't fall as the Roman Empire did, because the context is not the same and their territory has not been compromised as the Roman empire was by barbarians.