A lot. I couldn’t find hard numbers, but the range appears to be about a billion barrels of oil per year for the US, maybe higher. Interestingly, we used a lo

A lot. I couldn’t find hard numbers, but the range appears to be about a billion barrels of oil per year for the US, maybe higher. Interestingly, we used a lot less fuel per soldier then. The normal back then was 1 gallon per soldier per day. By desert storm we were up to 4, and by 2007 we consumed 16 gallons per soldier per day[0]. Now obviously we have a smaller army now, which goes a long way to explain the lower total consumption than in WW2, but it is mildly terrifying to consider what a WW2 sized engagement would consume at 16x the per-soldier fuel consumption. 0: https://www.forbes.com/2008/06/05/mileage-military-vehicles-tech-logistics08-cz_ph_0605fuel.html https://www.forbes.com/2008/06/05/mileage-military-vehicles-...