James Erwin was browsing Reddit on his lunch break when a thread piqued his interest. A user called The_Quiet_Earth had posed the question: "Could I destroy the entire Roman Empire during the reign of Augustus if I traveled back in time with a modern U.S. Marine infantry battalion or MEU?"
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In the reddit story, however, Erwin said the Marines would not be resupplied with bullets, batteries, or gasoline from the modern world. "There would be no way of obtaining replacements for these supplies in the ancient world," Goldsworthy says. "An average unit of Marines is not likely to be able to make an oil refinery, start generating electricity, or create machine tools to make spare parts for equipment." And even if they could figure it out, it would take many months or even years. So, as soon as the Marines ran out of gas, their tanks would become little more than hunks of metal.
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Erwin's reddit story stipulates that no more Marines will come back in time, although they may recruit in the ancient world. The Marines would have to; even at their lowest periods, the Roman Empire could conscript hundreds of thousands of soldiers whenever it wanted.
So, what's the point spread?
